56235381 has 4 divisors (see below), whose sum is σ = 74980512. Its totient is φ = 37490252.

The previous prime is 56235373. The next prime is 56235397. The reversal of 56235381 is 18353265.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56235381 - 2³ = 56235373 is a prime.

It is a super-2 number, since 2×56235381² = 6324836152430322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56235341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9372561 + ... + 9372566.

It is an arithmetic number, because the mean of its divisors is an integer number (18745128).

Almost surely, 2^56235381 is an apocalyptic number.

It is an amenable number.

56235381 is a deficient number, since it is larger than the sum of its proper divisors (18745131).

56235381 is a wasteful number, since it uses less digits than its factorization.

56235381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18745130.

The product of its digits is 21600, while the sum is 33.

The square root of 56235381 is about 7499.0253366688. The cubic root of 56235381 is about 383.1215202020.

It can be divided in two parts, 56235 and 381, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 56235381 in words is "fifty-six million, two hundred thirty-five thousand, three hundred eighty-one".