51256546053 has 4 divisors (see below), whose sum is σ = 68342061408. Its totient is φ = 34171030700.

The previous prime is 51256546051. The next prime is 51256546073. The reversal of 51256546053 is 35064565215.

51256546053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51256546053 - 2¹ = 51256546051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51256545996 and 51256546014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51256546051) 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, 8542757673 + ... + 8542757678.

It is an arithmetic number, because the mean of its divisors is an integer number (17085515352).

Almost surely, 2^51256546053 is an apocalyptic number.

It is an amenable number.

51256546053 is a deficient number, since it is larger than the sum of its proper divisors (17085515355).

51256546053 is a wasteful number, since it uses less digits than its factorization.

51256546053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17085515354.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 51256546053 in words is "fifty-one billion, two hundred fifty-six million, five hundred forty-six thousand, fifty-three".