51539005390 has 8 divisors (see below), whose sum is σ = 92770209720. Its totient is φ = 20615602152.

The previous prime is 51539005387. The next prime is 51539005481. The reversal of 51539005390 is 9350093515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576950260 + ... + 2576950279.

It is an arithmetic number, because the mean of its divisors is an integer number (11596276215).

Almost surely, 2^51539005390 is an apocalyptic number.

51539005390 is a deficient number, since it is larger than the sum of its proper divisors (41231204330).

51539005390 is a wasteful number, since it uses less digits than its factorization.

51539005390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153900546.

The product of its (nonzero) digits is 91125, while the sum is 40.

The spelling of 51539005390 in words is "fifty-one billion, five hundred thirty-nine million, five thousand, three hundred ninety".