251115022054 has 16 divisors (see below), whose sum is σ = 405688852800. Its totient is φ = 115887381120.

The previous prime is 251115022009. The next prime is 251115022061. The reversal of 251115022054 is 450220511152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232579 + ... + 745870.

It is an arithmetic number, because the mean of its divisors is an integer number (25355553300).

Almost surely, 2^251115022054 is an apocalyptic number.

251115022054 is a deficient number, since it is larger than the sum of its proper divisors (154573830746).

251115022054 is a wasteful number, since it uses less digits than its factorization.

251115022054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988335.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 251115022054 in words is "two hundred fifty-one billion, one hundred fifteen million, twenty-two thousand, fifty-four".