56402550 has 36 divisors (see below), whose sum is σ = 151536060. Its totient is φ = 15040560.

The previous prime is 56402539. The next prime is 56402551. The reversal of 56402550 is 5520465.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56402551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62220 + ... + 63119.

It is an arithmetic number, because the mean of its divisors is an integer number (4209335).

Almost surely, 2^56402550 is an apocalyptic number.

56402550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56402550 is an abundant number, since it is smaller than the sum of its proper divisors (95133510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56402550 is a wasteful number, since it uses less digits than its factorization.

56402550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125357 (or 125349 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 56402550 is about 7510.1631140742. The cubic root of 56402550 is about 383.5007754110.

The spelling of 56402550 in words is "fifty-six million, four hundred two thousand, five hundred fifty".