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55523895 = 357528799
BaseRepresentation
bin1101001111001…
…1101000110111
310212110220110120
43103303220313
5103203231040
65302023023
71242642150
oct323635067
9125426416
1055523895
1129383a19
1216717a73
13b67079b
147534927
154d1b7d0
hex34f3a37

55523895 has 16 divisors (see below), whose sum is σ = 101529600. Its totient is φ = 25382304.

The previous prime is 55523869. The next prime is 55523899. The reversal of 55523895 is 59832555.

It is not a de Polignac number, because 55523895 - 213 = 55515703 is a prime.

It is a super-3 number, since 3×555238953 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264295 + ... + 264504.

It is an arithmetic number, because the mean of its divisors is an integer number (6345600).

Almost surely, 255523895 is an apocalyptic number.

55523895 is a deficient number, since it is larger than the sum of its proper divisors (46005705).

55523895 is a wasteful number, since it uses less digits than its factorization.

55523895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528814.

The product of its digits is 270000, while the sum is 42.

The square root of 55523895 is about 7451.4357676893. The cubic root of 55523895 is about 381.4989158329.

The spelling of 55523895 in words is "fifty-five million, five hundred twenty-three thousand, eight hundred ninety-five".

Divisors: 1 3 5 7 15 21 35 105 528799 1586397 2643995 3701593 7931985 11104779 18507965 55523895