51321653254 has 16 divisors (see below), whose sum is σ = 77171659776. Its totient is φ = 25597845000.

The previous prime is 51321653237. The next prime is 51321653269. The reversal of 51321653254 is 45235612315.

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, 1349569 + ... + 1387075.

It is an arithmetic number, because the mean of its divisors is an integer number (4823228736).

Almost surely, 2^51321653254 is an apocalyptic number.

51321653254 is a deficient number, since it is larger than the sum of its proper divisors (25850006522).

51321653254 is a wasteful number, since it uses less digits than its factorization.

51321653254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39171.

The product of its digits is 108000, while the sum is 37.

The spelling of 51321653254 in words is "fifty-one billion, three hundred twenty-one million, six hundred fifty-three thousand, two hundred fifty-four".