55158075 has 54 divisors (see below), whose sum is σ = 114946884. Its totient is φ = 25210080.

The previous prime is 55158067. The next prime is 55158113. The reversal of 55158075 is 57085155.

55158075 is a `hidden beast` number, since 5 + 5 + 1 + 580 + 75 = 666.

It is not a de Polignac number, because 55158075 - 2³ = 55158067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 8524 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (2128646).

Almost surely, 2^55158075 is an apocalyptic number.

55158075 is an abundant number, since it is smaller than the sum of its proper divisors (59788809).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55158075 is a wasteful number, since it uses less digits than its factorization.

55158075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The square root of 55158075 is about 7426.8482548117. The cubic root of 55158075 is about 380.6592319589.

The spelling of 55158075 in words is "fifty-five million, one hundred fifty-eight thousand, seventy-five".