56025621 has 8 divisors (see below), whose sum is σ = 83000960. Its totient is φ = 37350396.

The previous prime is 56025617. The next prime is 56025637. The reversal of 56025621 is 12652065.

56025621 is a `hidden beast` number, since 5 + 602 + 56 + 2 + 1 = 666.

56025621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56025621 - 2² = 56025617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2075023 = 56025621 / (5 + 6 + 0 + 2 + 5 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56025691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037485 + ... + 1037538.

It is an arithmetic number, because the mean of its divisors is an integer number (10375120).

Almost surely, 2^56025621 is an apocalyptic number.

It is an amenable number.

56025621 is a deficient number, since it is larger than the sum of its proper divisors (26975339).

56025621 is a wasteful number, since it uses less digits than its factorization.

56025621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075032 (or 2075026 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56025621 is about 7485.0264528591. The cubic root of 56025621 is about 382.6445743369.

Adding to 56025621 its reverse (12652065), we get a palindrome (68677686).

The spelling of 56025621 in words is "fifty-six million, twenty-five thousand, six hundred twenty-one".