55231752 has 32 divisors (see below), whose sum is σ = 140028480. Its totient is φ = 18150720.

The previous prime is 55231751. The next prime is 55231783. The reversal of 55231752 is 25713255.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55231751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14503 + ... + 17910.

It is an arithmetic number, because the mean of its divisors is an integer number (4375890).

Almost surely, 2^55231752 is an apocalyptic number.

It is an amenable number.

55231752 is an abundant number, since it is smaller than the sum of its proper divisors (84796728).

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

55231752 is a wasteful number, since it uses less digits than its factorization.

55231752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32493 (or 32489 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 55231752 is about 7431.8067789737. The cubic root of 55231752 is about 380.8286441568.

The spelling of 55231752 in words is "fifty-five million, two hundred thirty-one thousand, seven hundred fifty-two".