31665052 has 6 divisors (see below), whose sum is σ = 55413848. Its totient is φ = 15832524.

The previous prime is 31665041. The next prime is 31665059. The reversal of 31665052 is 25056613.

It is a self number, because there is not a number n which added to its sum of digits gives 31665052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31665059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958128 + ... + 3958135.

Almost surely, 2^31665052 is an apocalyptic number.

It is an amenable number.

31665052 is a deficient number, since it is larger than the sum of its proper divisors (23748796).

31665052 is a wasteful number, since it uses less digits than its factorization.

31665052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916267 (or 7916265 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 31665052 is about 5627.1708699843. The cubic root of 31665052 is about 316.3686212617.

The spelling of 31665052 in words is "thirty-one million, six hundred sixty-five thousand, fifty-two".