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53553025405 = 511173710611459
BaseRepresentation
bin110001111000000000…
…100101000101111101
312010020012110120012101
4301320000211011331
51334134033303110
640334003105101
73604044130255
oct617000450575
9163205416171
1053553025405
1120791317690
12a466972191
135085bb3819
142840572965
1515d677813a
hexc7802517d

53553025405 has 64 divisors (see below), whose sum is σ = 76360008960. Its totient is φ = 35607859200.

The previous prime is 53553025399. The next prime is 53553025457. The reversal of 53553025405 is 50452035535.

It is not a de Polignac number, because 53553025405 - 215 = 53552992637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36704566 + ... + 36706024.

It is an arithmetic number, because the mean of its divisors is an integer number (1193125140).

Almost surely, 253553025405 is an apocalyptic number.

53553025405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53553025405 is a deficient number, since it is larger than the sum of its proper divisors (22806983555).

53553025405 is a wasteful number, since it uses less digits than its factorization.

53553025405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590.

The product of its (nonzero) digits is 225000, while the sum is 37.

The spelling of 53553025405 in words is "fifty-three billion, five hundred fifty-three million, twenty-five thousand, four hundred five".

Divisors: 1 5 11 17 37 55 85 185 187 407 629 935 1061 1459 2035 3145 5305 6919 7295 11671 16049 18037 24803 34595 39257 53983 58355 80245 90185 124015 196285 198407 269915 272833 431827 593813 667369 917711 992035 1364165 1547999 2159135 2969065 3336845 4588555 7341059 7739995 10094821 17027989 26315983 36705295 50474105 57275963 85139945 131579915 286379815 289475813 630035593 973691371 1447379065 3150177965 4868456855 10710605081 53553025405