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55952897 = 7111355897
BaseRepresentation
bin1101010101110…
…0011000000001
310220021200221112
43111130120001
5103310443042
65315133105
71246406660
oct325343001
9126250845
1055952897
1129647270
12168a4195
13b790b30
147606dd7
154da3982
hex355c601

55952897 has 16 divisors (see below), whose sum is σ = 75126912. Its totient is φ = 40245120.

The previous prime is 55952881. The next prime is 55952903. The reversal of 55952897 is 79825955.

It is a cyclic number.

It is not a de Polignac number, because 55952897 - 24 = 55952881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55952857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26948 + ... + 28949.

It is an arithmetic number, because the mean of its divisors is an integer number (4695432).

Almost surely, 255952897 is an apocalyptic number.

It is an amenable number.

55952897 is a deficient number, since it is larger than the sum of its proper divisors (19174015).

55952897 is a wasteful number, since it uses less digits than its factorization.

55952897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55928.

The product of its digits is 1134000, while the sum is 50.

The square root of 55952897 is about 7480.1669099025. The cubic root of 55952897 is about 382.4789388492.

The spelling of 55952897 in words is "fifty-five million, nine hundred fifty-two thousand, eight hundred ninety-seven".

Divisors: 1 7 11 13 77 91 143 1001 55897 391279 614867 726661 4304069 5086627 7993271 55952897