56642461 has 4 divisors (see below), whose sum is σ = 56658112. Its totient is φ = 56626812.

The previous prime is 56642459. The next prime is 56642497. The reversal of 56642461 is 16424665.

56642461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56642461 - 2¹ = 56642459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56645461) 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 3 ways as a sum of consecutive naturals, for example, 700 + ... + 10666.

It is an arithmetic number, because the mean of its divisors is an integer number (14164528).

Almost surely, 2^56642461 is an apocalyptic number.

It is an amenable number.

56642461 is a deficient number, since it is larger than the sum of its proper divisors (15651).

56642461 is an equidigital number, since it uses as much as digits as its factorization.

56642461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15650.

The product of its digits is 34560, while the sum is 34.

The square root of 56642461 is about 7526.1185879575. The cubic root of 56642461 is about 384.0437527006.

It can be divided in two parts, 5 and 6642461, that added together give a palindrome (6642466).

The spelling of 56642461 in words is "fifty-six million, six hundred forty-two thousand, four hundred sixty-one".