623561250 has 80 divisors (see below), whose sum is σ = 1678412736. Its totient is φ = 153480000.

The previous prime is 623561243. The next prime is 623561261. The reversal of 623561250 is 52165326.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42355 + ... + 55145.

Almost surely, 2^623561250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623561250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839206368).

623561250 is an abundant number, since it is smaller than the sum of its proper divisors (1054851486).

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

623561250 is a wasteful number, since it uses less digits than its factorization.

623561250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12829 (or 12814 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 623561250 is about 24971.2084208995. The cubic root of 623561250 is about 854.3314085047.

The spelling of 623561250 in words is "six hundred twenty-three million, five hundred sixty-one thousand, two hundred fifty".