52231788 has 36 divisors (see below), whose sum is σ = 150892560. Its totient is φ = 14923296.

The previous prime is 52231787. The next prime is 52231811. The reversal of 52231788 is 88713225.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52231787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103383 + ... + 103886.

It is an arithmetic number, because the mean of its divisors is an integer number (4191460).

Almost surely, 2^52231788 is an apocalyptic number.

It is an amenable number.

52231788 is an abundant number, since it is smaller than the sum of its proper divisors (98660772).

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

52231788 is a wasteful number, since it uses less digits than its factorization.

52231788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207286 (or 207281 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 52231788 is about 7227.1562872267. The cubic root of 52231788 is about 373.8048778678.

The spelling of 52231788 in words is "fifty-two million, two hundred thirty-one thousand, seven hundred eighty-eight".