52561250 has 40 divisors (see below), whose sum is σ = 112613952. Its totient is φ = 18018000.

The previous prime is 52561247. The next prime is 52561343. The reversal of 52561250 is 5216525.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5747 + ... + 11753.

Almost surely, 2^52561250 is an apocalyptic number.

52561250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52561250 is an abundant number, since it is smaller than the sum of its proper divisors (60052702).

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

52561250 is an equidigital number, since it uses as much as digits as its factorization.

52561250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6021 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 52561250 is about 7249.9137925909. The cubic root of 52561250 is about 374.5891797319.

Adding to 52561250 its reverse (5216525), we get a palindrome (57777775).

The spelling of 52561250 in words is "fifty-two million, five hundred sixty-one thousand, two hundred fifty".