52655591 has 2 divisors, whose sum is σ = 52655592. Its totient is φ = 52655590.

The previous prime is 52655587. The next prime is 52655621. The reversal of 52655591 is 19555625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52655591 - 2² = 52655587 is a prime.

It is a super-2 number, since 2×52655591² = 5545222527118562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52655531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26327795 + 26327796.

It is an arithmetic number, because the mean of its divisors is an integer number (26327796).

Almost surely, 2^52655591 is an apocalyptic number.

52655591 is a deficient number, since it is larger than the sum of its proper divisors (1).

52655591 is an equidigital number, since it uses as much as digits as its factorization.

52655591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 38.

The square root of 52655591 is about 7256.4172289085. The cubic root of 52655591 is about 374.8131596647.

The spelling of 52655591 in words is "fifty-two million, six hundred fifty-five thousand, five hundred ninety-one".