55632015 has 20 divisors (see below), whose sum is σ = 99726264. Its totient is φ = 29670192.

The previous prime is 55631993. The next prime is 55632077. The reversal of 55632015 is 51023655.

It is not a de Polignac number, because 55632015 - 2⁸ = 55631759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 55632015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68277 + ... + 69086.

Almost surely, 2^55632015 is an apocalyptic number.

55632015 is a deficient number, since it is larger than the sum of its proper divisors (44094249).

55632015 is a wasteful number, since it uses less digits than its factorization.

55632015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137380 (or 137371 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 55632015 is about 7458.6872169303. The cubic root of 55632015 is about 381.7463823712.

The spelling of 55632015 in words is "fifty-five million, six hundred thirty-two thousand, fifteen".