56197801 has 16 divisors (see below), whose sum is σ = 68333760. Its totient is φ = 45550080.

The previous prime is 56197793. The next prime is 56197819. The reversal of 56197801 is 10879165.

It is a cyclic number.

It is not a de Polignac number, because 56197801 - 2³ = 56197793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56197831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4356 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (4270860).

Almost surely, 2^56197801 is an apocalyptic number.

It is an amenable number.

56197801 is a deficient number, since it is larger than the sum of its proper divisors (12135959).

56197801 is a wasteful number, since it uses less digits than its factorization.

56197801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15864.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 56197801 is about 7496.5192589628. The cubic root of 56197801 is about 383.0361592613.

The spelling of 56197801 in words is "fifty-six million, one hundred ninety-seven thousand, eight hundred one".