56446121 has 4 divisors (see below), whose sum is σ = 56472192. Its totient is φ = 56420052.

The previous prime is 56446111. The next prime is 56446123. The reversal of 56446121 is 12164465.

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 a cyclic number.

It is not a de Polignac number, because 56446121 - 2¹⁰ = 56445097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56446123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9461 + ... + 14226.

It is an arithmetic number, because the mean of its divisors is an integer number (14118048).

Almost surely, 2^56446121 is an apocalyptic number.

It is an amenable number.

56446121 is a deficient number, since it is larger than the sum of its proper divisors (26071).

56446121 is a wasteful number, since it uses less digits than its factorization.

56446121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26070.

The product of its digits is 5760, while the sum is 29.

The square root of 56446121 is about 7513.0633565810. The cubic root of 56446121 is about 383.5995015113.

The spelling of 56446121 in words is "fifty-six million, four hundred forty-six thousand, one hundred twenty-one".