51024252906 has 24 divisors (see below), whose sum is σ = 120602780064. Its totient is φ = 15461894760.

The previous prime is 51024252887. The next prime is 51024252949. The reversal of 51024252906 is 60925242015.

51024252906 is a `hidden beast` number, since 510 + 2 + 4 + 2 + 52 + 90 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 128848926 + ... + 128849321.

It is an arithmetic number, because the mean of its divisors is an integer number (5025115836).

Almost surely, 2^51024252906 is an apocalyptic number.

51024252906 is an abundant number, since it is smaller than the sum of its proper divisors (69578527158).

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

51024252906 is a wasteful number, since it uses less digits than its factorization.

51024252906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257698266 (or 257698263 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 51024252906 in words is "fifty-one billion, twenty-four million, two hundred fifty-two thousand, nine hundred six".