252591924 has 24 divisors (see below), whose sum is σ = 634718560. Its totient is φ = 77720544.

The previous prime is 252591919. The next prime is 252591931. The reversal of 252591924 is 429195252.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809434 + ... + 809745.

Almost surely, 2^252591924 is an apocalyptic number.

It is an amenable number.

252591924 is an abundant number, since it is smaller than the sum of its proper divisors (382126636).

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

252591924 is a wasteful number, since it uses less digits than its factorization.

252591924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619199 (or 1619197 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 252591924 is about 15893.1407846278. The cubic root of 252591924 is about 632.1301239570.

It can be divided in two parts, 2525 and 91924, that added together give a palindrome (94449).

The spelling of 252591924 in words is "two hundred fifty-two million, five hundred ninety-one thousand, nine hundred twenty-four".