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53103555505 = 57111352320287
BaseRepresentation
bin110001011101001101…
…111111001110110001
312002001212201010102001
4301131031333032301
51332224002234010
640221225254001
73556645526350
oct613515771661
9162055633361
1053103555505
1120580633260
12a360334301
135013a411c0
1427da9b1997
1515ac091c3a
hexc5d37f3b1

53103555505 has 64 divisors (see below), whose sum is σ = 85727674368. Its totient is φ = 30497160960.

The previous prime is 53103555493. The next prime is 53103555553. The reversal of 53103555505 is 50555530135.

It is not a de Polignac number, because 53103555505 - 213 = 53103547313 is a prime.

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, 2607472 + ... + 2627758.

It is an arithmetic number, because the mean of its divisors is an integer number (1339494912).

Almost surely, 253103555505 is an apocalyptic number.

53103555505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53103555505 is a deficient number, since it is larger than the sum of its proper divisors (32624118863).

53103555505 is a wasteful number, since it uses less digits than its factorization.

53103555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20846.

The product of its (nonzero) digits is 140625, while the sum is 37.

The spelling of 53103555505 in words is "fifty-three billion, one hundred three million, five hundred fifty-five thousand, five hundred five".

Divisors: 1 5 7 11 13 35 55 65 77 91 143 385 455 523 715 1001 2615 3661 5005 5753 6799 18305 20287 28765 33995 40271 47593 74789 101435 142009 201355 223157 237965 263731 373945 523523 710045 1115785 1318655 1562099 1846117 2617615 2901041 7810495 9230585 10610101 14505205 20307287 53050505 74270707 101536435 116711111 137931313 371353535 583555555 689656565 816977777 965519191 1517244443 4084888885 4827595955 7586222215 10620711101 53103555505