51256460262 has 64 divisors (see below), whose sum is σ = 122394230784. Its totient is φ = 14001513120.

The previous prime is 51256460221. The next prime is 51256460291. The reversal of 51256460262 is 26206465215.

It is a self number, because there is not a number n which added to its sum of digits gives 51256460262.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129088 + ... + 345219.

It is an arithmetic number, because the mean of its divisors is an integer number (1912409856).

Almost surely, 2^51256460262 is an apocalyptic number.

51256460262 is an abundant number, since it is smaller than the sum of its proper divisors (71137770522).

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

51256460262 is a wasteful number, since it uses less digits than its factorization.

51256460262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474433.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 51256460262 in words is "fifty-one billion, two hundred fifty-six million, four hundred sixty thousand, two hundred sixty-two".