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52555555 = 5136131319
BaseRepresentation
bin1100100001111…
…0111100100011
310122220002200001
43020132330203
5101423234210
65114240431
71205500123
oct310367443
9118802601
1052555555
1127736848
1215726117
13ab71680
146da0c83
15493203a
hex321ef23

52555555 has 16 divisors (see below), whose sum is σ = 68080320. Its totient is φ = 38717568.

The previous prime is 52555543. The next prime is 52555583. The reversal of 52555555 is 55555525.

It is a cyclic number.

It is not a de Polignac number, because 52555555 - 27 = 52555427 is a prime.

It is a super-2 number, since 2×525555552 = 5524172722716050, which contains 22 as substring.

52555555 is a modest number, since divided by 5555 gives 5255 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39186 + ... + 40504.

It is an arithmetic number, because the mean of its divisors is an integer number (4255020).

Almost surely, 252555555 is an apocalyptic number.

52555555 is a deficient number, since it is larger than the sum of its proper divisors (15524765).

52555555 is a wasteful number, since it uses less digits than its factorization.

52555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 156250, while the sum is 37.

The square root of 52555555 is about 7249.5210186605. The cubic root of 52555555 is about 374.5756503578.

The spelling of 52555555 in words is "fifty-two million, five hundred fifty-five thousand, five hundred fifty-five".

Divisors: 1 5 13 65 613 1319 3065 6595 7969 17147 39845 85735 808547 4042735 10511111 52555555