55911087 has 8 divisors (see below), whose sum is σ = 82831280. Its totient is φ = 37274040.

The previous prime is 55911071. The next prime is 55911127. The reversal of 55911087 is 78011955.

It is not a de Polignac number, because 55911087 - 2⁴ = 55911071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55911067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035364 + ... + 1035417.

It is an arithmetic number, because the mean of its divisors is an integer number (10353910).

Almost surely, 2^55911087 is an apocalyptic number.

55911087 is a deficient number, since it is larger than the sum of its proper divisors (26920193).

55911087 is a wasteful number, since it uses less digits than its factorization.

55911087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070790 (or 2070784 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 55911087 is about 7477.3716638937. The cubic root of 55911087 is about 382.3836478093.

The spelling of 55911087 in words is "fifty-five million, nine hundred eleven thousand, eighty-seven".