55604087 has 16 divisors (see below), whose sum is σ = 72340992. Its totient is φ = 41442720.

The previous prime is 55604063. The next prime is 55604099. The reversal of 55604087 is 78040655.

It is not a de Polignac number, because 55604087 - 2¹⁴ = 55587703 is a prime.

It is a super-2 number, since 2×55604087² = 6183628982207138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55604047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13928 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (4521312).

Almost surely, 2^55604087 is an apocalyptic number.

55604087 is a deficient number, since it is larger than the sum of its proper divisors (16736905).

55604087 is a wasteful number, since it uses less digits than its factorization.

55604087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31438.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 55604087 is about 7456.8148025816. The cubic root of 55604087 is about 381.6824911177.

The spelling of 55604087 in words is "fifty-five million, six hundred four thousand, eighty-seven".