51275705737245 has 32 divisors (see below), whose sum is σ = 93390692511744. Its totient is φ = 23780037441600.

The previous prime is 51275705737181. The next prime is 51275705737283. The reversal of 51275705737245 is 54273750757215.

It is not a de Polignac number, because 51275705737245 - 2⁶ = 51275705737181 is a prime.

It is a congruent number.

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, 6755688661 + ... + 6755696250.

It is an arithmetic number, because the mean of its divisors is an integer number (2918459140992).

Almost surely, 2^{51275705737245} is an apocalyptic number.

51275705737245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51275705737245 is a deficient number, since it is larger than the sum of its proper divisors (42114986774499).

51275705737245 is a wasteful number, since it uses less digits than its factorization.

51275705737245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13511384953.

The product of its (nonzero) digits is 72030000, while the sum is 60.

The spelling of 51275705737245 in words is "fifty-one trillion, two hundred seventy-five billion, seven hundred five million, seven hundred thirty-seven thousand, two hundred forty-five".