55695213 has 108 divisors (see below), whose sum is σ = 109193760. Its totient is φ = 27143424.

The previous prime is 55695193. The next prime is 55695223. The reversal of 55695213 is 31259655.

55695213 is a `hidden beast` number, since 556 + 95 + 2 + 13 = 666.

It is not a de Polignac number, because 55695213 - 2⁵ = 55695181 is a prime.

It is a super-2 number, since 2×55695213² = 6203913502230738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55695223) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2421520 + ... + 2421542.

Almost surely, 2^55695213 is an apocalyptic number.

It is an amenable number.

55695213 is a deficient number, since it is larger than the sum of its proper divisors (53498547).

55695213 is a wasteful number, since it uses less digits than its factorization.

55695213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 69 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 55695213 is about 7462.9225508510. The cubic root of 55695213 is about 381.8908823686.

The spelling of 55695213 in words is "fifty-five million, six hundred ninety-five thousand, two hundred thirteen".