251572130070 has 32 divisors (see below), whose sum is σ = 603789465600. Its totient is φ = 67084084320.

The previous prime is 251572130059. The next prime is 251572130087. The reversal of 251572130070 is 70031275152.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301605 + ... + 1482335.

It is an arithmetic number, because the mean of its divisors is an integer number (18868420800).

Almost surely, 2^251572130070 is an apocalyptic number.

251572130070 is an abundant number, since it is smaller than the sum of its proper divisors (352217335530).

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

251572130070 is a wasteful number, since it uses less digits than its factorization.

251572130070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227140.

The product of its (nonzero) digits is 14700, while the sum is 33.

The spelling of 251572130070 in words is "two hundred fifty-one billion, five hundred seventy-two million, one hundred thirty thousand, seventy".