251204996 has 24 divisors (see below), whose sum is σ = 505323840. Its totient is φ = 107034912.

The previous prime is 251204983. The next prime is 251204999. The reversal of 251204996 is 699402152.

251204996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (251204999) 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, 21086 + ... + 30773.

It is an arithmetic number, because the mean of its divisors is an integer number (21055160).

Almost surely, 2^251204996 is an apocalyptic number.

It is an amenable number.

251204996 is an abundant number, since it is smaller than the sum of its proper divisors (254118844).

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

251204996 is a wasteful number, since it uses less digits than its factorization.

251204996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52043 (or 52041 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 251204996 is about 15849.4478137252. The cubic root of 251204996 is about 630.9710363496.

It can be divided in two parts, 25 and 1204996, that added together give a palindrome (1205021).

The spelling of 251204996 in words is "two hundred fifty-one million, two hundred four thousand, nine hundred ninety-six".