252630620 has 48 divisors (see below), whose sum is σ = 603929088. Its totient is φ = 87869760.

The previous prime is 252630619. The next prime is 252630641. The reversal of 252630620 is 26036252.

It is a self number, because there is not a number n which added to its sum of digits gives 252630620.

It is a congruent number.

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, 19904 + ... + 30023.

It is an arithmetic number, because the mean of its divisors is an integer number (12581856).

Almost surely, 2^252630620 is an apocalyptic number.

252630620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252630620 is an abundant number, since it is smaller than the sum of its proper divisors (351298468).

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

252630620 is a wasteful number, since it uses less digits than its factorization.

252630620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49970 (or 49968 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 252630620 is about 15894.3581185275. The cubic root of 252630620 is about 632.1624021839.

Adding to 252630620 its reverse (26036252), we get a palindrome (278666872).

The spelling of 252630620 in words is "two hundred fifty-two million, six hundred thirty thousand, six hundred twenty".