250139564 has 24 divisors (see below), whose sum is σ = 464168880. Its totient is φ = 117541376.

The previous prime is 250139531. The next prime is 250139569. The reversal of 250139564 is 465931052.

It is a super-2 number, since 2×250139564² = 125139602956220192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (250139569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52739 + ... + 57285.

It is an arithmetic number, because the mean of its divisors is an integer number (19340370).

Almost surely, 2^250139564 is an apocalyptic number.

It is an amenable number.

250139564 is a deficient number, since it is larger than the sum of its proper divisors (214029316).

250139564 is a wasteful number, since it uses less digits than its factorization.

250139564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 250139564 is about 15815.8010862555. The cubic root of 250139564 is about 630.0777295544.

The spelling of 250139564 in words is "two hundred fifty million, one hundred thirty-nine thousand, five hundred sixty-four".