250258066564 has 27 divisors (see below), whose sum is σ = 481406005591. Its totient is φ = 113748664040.

The previous prime is 250258066547. The next prime is 250258066609. The reversal of 250258066564 is 465660852052.

The square root of 250258066564 is 500258.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10994307 + ... + 11017045.

Almost surely, 2^250258066564 is an apocalyptic number.

250258066564 is the 500258-th square number.

It is an amenable number.

250258066564 is a deficient number, since it is larger than the sum of its proper divisors (231147939027).

250258066564 is an frugal number, since it uses more digits than its factorization.

250258066564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45504 (or 22752 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

Multiplying 250258066564 by its sum of digits (49), we get a square (12262645261636 = 3501806²).

The spelling of 250258066564 in words is "two hundred fifty billion, two hundred fifty-eight million, sixty-six thousand, five hundred sixty-four".