561251200 has 48 divisors (see below), whose sum is σ = 1386473760. Its totient is φ = 224499200.

The previous prime is 561251191. The next prime is 561251231. The reversal of 561251200 is 2152165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84496 + ... + 90895.

It is an arithmetic number, because the mean of its divisors is an integer number (28884870).

Almost surely, 2^561251200 is an apocalyptic number.

561251200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

561251200 is an abundant number, since it is smaller than the sum of its proper divisors (825222560).

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

561251200 is a wasteful number, since it uses less digits than its factorization.

561251200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175415 (or 175398 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 561251200 is about 23690.7408073281. The cubic root of 561251200 is about 824.8704785954.

The spelling of 561251200 in words is "five hundred sixty-one million, two hundred fifty-one thousand, two hundred".