251055530004 has 96 divisors (see below), whose sum is σ = 609284874240. Its totient is φ = 80371728000.

The previous prime is 251055530003. The next prime is 251055530027. The reversal of 251055530004 is 400035550152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251055530003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97344787 + ... + 97347365.

It is an arithmetic number, because the mean of its divisors is an integer number (6346717440).

Almost surely, 2^251055530004 is an apocalyptic number.

It is an amenable number.

251055530004 is an abundant number, since it is smaller than the sum of its proper divisors (358229344236).

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

251055530004 is a wasteful number, since it uses less digits than its factorization.

251055530004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501 (or 4499 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 251055530004 in words is "two hundred fifty-one billion, fifty-five million, five hundred thirty thousand, four".