56921193 has 24 divisors (see below), whose sum is σ = 95888000. Its totient is φ = 32524632.

The previous prime is 56921191. The next prime is 56921269. The reversal of 56921193 is 39112965.

56921193 is a `hidden beast` number, since 569 + 2 + 1 + 1 + 93 = 666.

It is not a de Polignac number, because 56921193 - 2¹ = 56921191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56921191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6133 + ... + 12306.

Almost surely, 2^56921193 is an apocalyptic number.

It is an amenable number.

56921193 is a deficient number, since it is larger than the sum of its proper divisors (38966807).

56921193 is a wasteful number, since it uses less digits than its factorization.

56921193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18466 (or 18449 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 56921193 is about 7544.6135089877. The cubic root of 56921193 is about 384.6726694378.

The spelling of 56921193 in words is "fifty-six million, nine hundred twenty-one thousand, one hundred ninety-three".