251530245001 has 16 divisors (see below), whose sum is σ = 296817095680. Its totient is φ = 208585679040.

The previous prime is 251530244863. The next prime is 251530245019. The reversal of 251530245001 is 100542035152.

It is a cyclic number.

It is not a de Polignac number, because 251530245001 - 2³⁵ = 217170506633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251530245041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648595 + ... + 961111.

It is an arithmetic number, because the mean of its divisors is an integer number (18551068480).

Almost surely, 2^251530245001 is an apocalyptic number.

It is an amenable number.

251530245001 is a deficient number, since it is larger than the sum of its proper divisors (45286850679).

251530245001 is a wasteful number, since it uses less digits than its factorization.

251530245001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316264.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 251530245001 in words is "two hundred fifty-one billion, five hundred thirty million, two hundred forty-five thousand, one".