51953597251379 has 4 divisors (see below), whose sum is σ = 51953618557680. Its totient is φ = 51953575945080.

The previous prime is 51953597251253. The next prime is 51953597251393. The reversal of 51953597251379 is 97315279535915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51953597251379 - 2¹² = 51953597247283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51953597251979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6440159 + ... + 12057480.

It is an arithmetic number, because the mean of its divisors is an integer number (12988404639420).

Almost surely, 2^{51953597251379} is an apocalyptic number.

51953597251379 is a deficient number, since it is larger than the sum of its proper divisors (21306301).

51953597251379 is a wasteful number, since it uses less digits than its factorization.

51953597251379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21306300.

The product of its digits is 401861250, while the sum is 71.

The spelling of 51953597251379 in words is "fifty-one trillion, nine hundred fifty-three billion, five hundred ninety-seven million, two hundred fifty-one thousand, three hundred seventy-nine".