56402061 has 4 divisors (see below), whose sum is σ = 75202752. Its totient is φ = 37601372.

The previous prime is 56402057. The next prime is 56402081. The reversal of 56402061 is 16020465.

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 56402061 - 2² = 56402057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56402041) 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, 9400341 + ... + 9400346.

It is an arithmetic number, because the mean of its divisors is an integer number (18800688).

Almost surely, 2^56402061 is an apocalyptic number.

It is an amenable number.

56402061 is a deficient number, since it is larger than the sum of its proper divisors (18800691).

56402061 is a wasteful number, since it uses less digits than its factorization.

56402061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18800690.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 56402061 is about 7510.1305581195. The cubic root of 56402061 is about 383.4996671134.

The spelling of 56402061 in words is "fifty-six million, four hundred two thousand, sixty-one".