56442516 has 48 divisors (see below), whose sum is σ = 150179904. Its totient is φ = 16344576.

The previous prime is 56442511. The next prime is 56442539. The reversal of 56442516 is 61524465.

It is a super-2 number, since 2×56442516² = 6371515224820512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56442511) 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, 7990 + ... + 13293.

It is an arithmetic number, because the mean of its divisors is an integer number (3128748).

Almost surely, 2^56442516 is an apocalyptic number.

It is an amenable number.

56442516 is an abundant number, since it is smaller than the sum of its proper divisors (93737388).

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

56442516 is a wasteful number, since it uses less digits than its factorization.

56442516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21320 (or 21318 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 56442516 is about 7512.8234372971. The cubic root of 56442516 is about 383.5913349882.

The spelling of 56442516 in words is "fifty-six million, four hundred forty-two thousand, five hundred sixteen".