51253339140 has 48 divisors (see below), whose sum is σ = 159454834560. Its totient is φ = 13667556960.

The previous prime is 51253339079. The next prime is 51253339177. The reversal of 51253339140 is 4193335215.

51253339140 is a `hidden beast` number, since 51 + 2 + 533 + 39 + 1 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51253339095 and 51253339104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47456256 + ... + 47457335.

It is an arithmetic number, because the mean of its divisors is an integer number (3321975720).

Almost surely, 2^51253339140 is an apocalyptic number.

It is an amenable number.

51253339140 is an abundant number, since it is smaller than the sum of its proper divisors (108201495420).

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

51253339140 is a wasteful number, since it uses less digits than its factorization.

51253339140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94913609 (or 94913601 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 51253339140 in words is "fifty-one billion, two hundred fifty-three million, three hundred thirty-nine thousand, one hundred forty".