56122401 has 4 divisors (see below), whose sum is σ = 74829872. Its totient is φ = 37414932.

The previous prime is 56122387. The next prime is 56122427. The reversal of 56122401 is 10422165.

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.

It is not a de Polignac number, because 56122401 - 2⁷ = 56122273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56120401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9353731 + ... + 9353736.

It is an arithmetic number, because the mean of its divisors is an integer number (18707468).

Almost surely, 2^56122401 is an apocalyptic number.

It is an amenable number.

56122401 is a deficient number, since it is larger than the sum of its proper divisors (18707471).

56122401 is a wasteful number, since it uses less digits than its factorization.

56122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18707470.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 56122401 is about 7491.4885703710. The cubic root of 56122401 is about 382.8647773926.

Adding to 56122401 its reverse (10422165), we get a palindrome (66544566).

The spelling of 56122401 in words is "fifty-six million, one hundred twenty-two thousand, four hundred one".