56027421 has 12 divisors (see below), whose sum is σ = 81090048. Its totient is φ = 37277064.

The previous prime is 56027399. The next prime is 56027429. The reversal of 56027421 is 12472065.

It is not a de Polignac number, because 56027421 - 2⁶ = 56027357 is a prime.

It is a super-2 number, since 2×56027421² = 6278143807822482, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56027429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1245 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (6757504).

Almost surely, 2^56027421 is an apocalyptic number.

It is an amenable number.

56027421 is a deficient number, since it is larger than the sum of its proper divisors (25062627).

56027421 is a wasteful number, since it uses less digits than its factorization.

56027421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432 (or 12429 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 56027421 is about 7485.1466919493. The cubic root of 56027421 is about 382.6486721815.

Adding to 56027421 its reverse (12472065), we get a palindrome (68499486).

The spelling of 56027421 in words is "fifty-six million, twenty-seven thousand, four hundred twenty-one".