55908571 has 2 divisors, whose sum is σ = 55908572. Its totient is φ = 55908570.

The previous prime is 55908539. The next prime is 55908599. The reversal of 55908571 is 17580955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55908571 - 2⁵ = 55908539 is a prime.

It is a super-2 number, since 2×55908571² = 6251536622524082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55908271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27954285 + 27954286.

It is an arithmetic number, because the mean of its divisors is an integer number (27954286).

Almost surely, 2^55908571 is an apocalyptic number.

55908571 is a deficient number, since it is larger than the sum of its proper divisors (1).

55908571 is an equidigital number, since it uses as much as digits as its factorization.

55908571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 55908571 is about 7477.2034210659. The cubic root of 55908571 is about 382.3779119661.

It can be divided in two parts, 5590 and 8571, that added together give a square (14161 = 119²).

The spelling of 55908571 in words is "fifty-five million, nine hundred eight thousand, five hundred seventy-one".