51264561054313 has 4 divisors (see below), whose sum is σ = 51407359274880. Its totient is φ = 51121762833748.

The previous prime is 51264561054271. The next prime is 51264561054349. The reversal of 51264561054313 is 31345016546215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51264561054313 - 2³³ = 51255971119721 is a prime.

It is a super-2 number, since 2×51264561054313² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51264561058313) 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, 71399109745 + ... + 71399110462.

It is an arithmetic number, because the mean of its divisors is an integer number (12851839818720).

Almost surely, 2^{51264561054313} is an apocalyptic number.

It is an amenable number.

51264561054313 is a deficient number, since it is larger than the sum of its proper divisors (142798220567).

51264561054313 is a wasteful number, since it uses less digits than its factorization.

51264561054313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142798220566.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 51264561054313 in words is "fifty-one trillion, two hundred sixty-four billion, five hundred sixty-one million, fifty-four thousand, three hundred thirteen".