51084250905 has 32 divisors (see below), whose sum is σ = 83717821440. Its totient is φ = 26585173440.

The previous prime is 51084250879. The next prime is 51084250913. The reversal of 51084250905 is 50905248015.

It is not a de Polignac number, because 51084250905 - 2¹¹ = 51084248857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 626586 + ... + 703404.

It is an arithmetic number, because the mean of its divisors is an integer number (2616181920).

Almost surely, 2^51084250905 is an apocalyptic number.

It is an amenable number.

51084250905 is a deficient number, since it is larger than the sum of its proper divisors (32633570535).

51084250905 is a wasteful number, since it uses less digits than its factorization.

51084250905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77901.

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 51084250905 in words is "fifty-one billion, eighty-four million, two hundred fifty thousand, nine hundred five".