56402621 has 16 divisors (see below), whose sum is σ = 65126400. Its totient is φ = 48308400.

The previous prime is 56402611. The next prime is 56402629. The reversal of 56402621 is 12620465.

It is a cyclic number.

It is not a de Polignac number, because 56402621 - 2⁶ = 56402557 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 (56402629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43460 + ... + 44738.

It is an arithmetic number, because the mean of its divisors is an integer number (4070400).

Almost surely, 2^56402621 is an apocalyptic number.

It is an amenable number.

56402621 is a deficient number, since it is larger than the sum of its proper divisors (8723779).

56402621 is a wasteful number, since it uses less digits than its factorization.

56402621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56402621 is about 7510.1678410006. The cubic root of 56402621 is about 383.5009363289.

The spelling of 56402621 in words is "fifty-six million, four hundred two thousand, six hundred twenty-one".