55140752 has 20 divisors (see below), whose sum is σ = 111480960. Its totient is φ = 26371488.

The previous prime is 55140739. The next prime is 55140763. The reversal of 55140752 is 25704155.

It is a super-2 number, since 2×55140752² = 6081005062251008, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 55140752 parts by 10501 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74552 + ... + 75287.

It is an arithmetic number, because the mean of its divisors is an integer number (5574048).

Almost surely, 2^55140752 is an apocalyptic number.

It is an amenable number.

55140752 is an abundant number, since it is smaller than the sum of its proper divisors (56340208).

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

55140752 is a wasteful number, since it uses less digits than its factorization.

55140752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149870 (or 149864 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 55140752 is about 7425.6819215477. The cubic root of 55140752 is about 380.6193777138.

The spelling of 55140752 in words is "fifty-five million, one hundred forty thousand, seven hundred fifty-two".