55087415 has 24 divisors (see below), whose sum is σ = 70474320. Its totient is φ = 41321984.

The previous prime is 55087399. The next prime is 55087421. The reversal of 55087415 is 51478055.

It is not a de Polignac number, because 55087415 - 2⁴ = 55087399 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155879 + ... + 156231.

It is an arithmetic number, because the mean of its divisors is an integer number (2936430).

Almost surely, 2^55087415 is an apocalyptic number.

55087415 is a deficient number, since it is larger than the sum of its proper divisors (15386905).

55087415 is a wasteful number, since it uses less digits than its factorization.

55087415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55087415 is about 7422.0896653166. The cubic root of 55087415 is about 380.4966152426.

The spelling of 55087415 in words is "fifty-five million, eighty-seven thousand, four hundred fifteen".