51239025596361 has 32 divisors (see below), whose sum is σ = 72288971223040. Its totient is φ = 32232109291200.

The previous prime is 51239025596323. The next prime is 51239025596377. The reversal of 51239025596361 is 16369552093215.

It is not a de Polignac number, because 51239025596361 - 2¹³ = 51239025588169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51239029596361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8936326 + ... + 13503183.

It is an arithmetic number, because the mean of its divisors is an integer number (2259030350720).

Almost surely, 2^{51239025596361} is an apocalyptic number.

It is an amenable number.

51239025596361 is a deficient number, since it is larger than the sum of its proper divisors (21049945626679).

51239025596361 is a wasteful number, since it uses less digits than its factorization.

51239025596361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22440157.

The product of its (nonzero) digits is 13122000, while the sum is 57.

The spelling of 51239025596361 in words is "fifty-one trillion, two hundred thirty-nine billion, twenty-five million, five hundred ninety-six thousand, three hundred sixty-one".