56081236 has 24 divisors (see below), whose sum is σ = 103783680. Its totient is φ = 26442432.

The previous prime is 56081227. The next prime is 56081239. The reversal of 56081236 is 63218065.

It is a junction number, because it is equal to n+sod(n) for n = 56081198 and 56081207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56081239) 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, 16125 + ... + 19291.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 2^56081236 is an apocalyptic number.

It is an amenable number.

56081236 is a deficient number, since it is larger than the sum of its proper divisors (47702444).

56081236 is a wasteful number, since it uses less digits than its factorization.

56081236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 56081236 is about 7488.7406150834. The cubic root of 56081236 is about 382.7711458346.

It can be divided in two parts, 560 and 81236, that added together give a square (81796 = 286²).

The spelling of 56081236 in words is "fifty-six million, eighty-one thousand, two hundred thirty-six".