56021814 has 16 divisors (see below), whose sum is σ = 124493040. Its totient is φ = 18673920.

The previous prime is 56021773. The next prime is 56021827. The reversal of 56021814 is 41812065.

56021814 is a `hidden beast` number, since 560 + 21 + 81 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518667 + ... + 518774.

It is an arithmetic number, because the mean of its divisors is an integer number (7780815).

Almost surely, 2^56021814 is an apocalyptic number.

56021814 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

56021814 is an abundant number, since it is smaller than the sum of its proper divisors (68471226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56021814 is a wasteful number, since it uses less digits than its factorization.

56021814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037452 (or 1037446 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 56021814 is about 7484.7721408203. The cubic root of 56021814 is about 382.6359071065.

Adding to 56021814 its reverse (41812065), we get a palindrome (97833879).

The spelling of 56021814 in words is "fifty-six million, twenty-one thousand, eight hundred fourteen".