252251630 has 16 divisors (see below), whose sum is σ = 454535280. Its totient is φ = 100793472.

The previous prime is 252251621. The next prime is 252251669. The reversal of 252251630 is 36152252.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252251630.

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, 3140 + ... + 22679.

It is an arithmetic number, because the mean of its divisors is an integer number (28408455).

Almost surely, 2^252251630 is an apocalyptic number.

252251630 is a deficient number, since it is larger than the sum of its proper divisors (202283650).

252251630 is a wasteful number, since it uses less digits than its factorization.

252251630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26803.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 252251630 is about 15882.4314889125. The cubic root of 252251630 is about 631.8461260145.

The spelling of 252251630 in words is "two hundred fifty-two million, two hundred fifty-one thousand, six hundred thirty".