251930341425 has 48 divisors (see below), whose sum is σ = 478687933440. Its totient is φ = 114524715840.

The previous prime is 251930341409. The next prime is 251930341427. The reversal of 251930341425 is 524143039152.

251930341425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 251930341425 - 2⁴ = 251930341409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (251930341427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1246437 + ... + 1434386.

It is an arithmetic number, because the mean of its divisors is an integer number (9972665280).

Almost surely, 2^251930341425 is an apocalyptic number.

251930341425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251930341425 is a deficient number, since it is larger than the sum of its proper divisors (226757592015).

251930341425 is a wasteful number, since it uses less digits than its factorization.

251930341425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681022 (or 2681017 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 251930341425 in words is "two hundred fifty-one billion, nine hundred thirty million, three hundred forty-one thousand, four hundred twenty-five".