56202181 has 8 divisors (see below), whose sum is σ = 64373504. Its totient is φ = 48066480.

The previous prime is 56202173. The next prime is 56202191. The reversal of 56202181 is 18120265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56202181 - 2³ = 56202173 is a prime.

It is a super-2 number, since 2×56202181² = 6317370298313522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56202121) 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, 5430 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (8046688).

Almost surely, 2^56202181 is an apocalyptic number.

It is an amenable number.

56202181 is a deficient number, since it is larger than the sum of its proper divisors (8171323).

56202181 is a wasteful number, since it uses less digits than its factorization.

56202181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17811.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 56202181 is about 7496.8113888506. The cubic root of 56202181 is about 383.0461101536.

The spelling of 56202181 in words is "fifty-six million, two hundred two thousand, one hundred eighty-one".