56158882506 has 24 divisors (see below), whose sum is σ = 121697355780. Its totient is φ = 18716584896.

The previous prime is 56158882463. The next prime is 56158882519. The reversal of 56158882506 is 60528885165.

56158882506 is a `hidden beast` number, since 5 + 6 + 1 + 58 + 8 + 82 + 506 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49546753281 + 6612129225 = 222591^2 + 81315^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138315 + ... + 362558.

Almost surely, 2^56158882506 is an apocalyptic number.

56158882506 is an abundant number, since it is smaller than the sum of its proper divisors (65538473274).

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

56158882506 is a wasteful number, since it uses less digits than its factorization.

56158882506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507110 (or 507107 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 56158882506 in words is "fifty-six billion, one hundred fifty-eight million, eight hundred eighty-two thousand, five hundred six".