52390372 has 48 divisors (see below), whose sum is σ = 102484480. Its totient is φ = 23328000.

The previous prime is 52390369. The next prime is 52390381. The reversal of 52390372 is 27309325.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86872 + ... + 87472.

Almost surely, 2^52390372 is an apocalyptic number.

It is an amenable number.

52390372 is a deficient number, since it is larger than the sum of its proper divisors (50094108).

52390372 is a wasteful number, since it uses less digits than its factorization.

52390372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 52390372 is about 7238.1193690074. The cubic root of 52390372 is about 374.1828059588.

Adding to 52390372 its reverse (27309325), we get a palindrome (79699697).

The spelling of 52390372 in words is "fifty-two million, three hundred ninety thousand, three hundred seventy-two".