251042080 has 24 divisors (see below), whose sum is σ = 593087292. Its totient is φ = 100416768.

The previous prime is 251042063. The next prime is 251042081. The reversal of 251042080 is 80240152.

251042080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216796176 + 34245904 = 14724^2 + 5852^2 .

It is not an unprimeable number, because it can be changed into a prime (251042081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784347 + ... + 784666.

Almost surely, 2^251042080 is an apocalyptic number.

251042080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251042080 is an abundant number, since it is smaller than the sum of its proper divisors (342045212).

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

251042080 is a wasteful number, since it uses less digits than its factorization.

251042080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569028 (or 1569020 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 251042080 is about 15844.3074951227. The cubic root of 251042080 is about 630.8346039415.

The spelling of 251042080 in words is "two hundred fifty-one million, forty-two thousand, eighty".