51258885215 has 16 divisors (see below), whose sum is σ = 62163728640. Its totient is φ = 40572307200.

The previous prime is 51258885203. The next prime is 51258885277.

It is a happy number.

51258885215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51258885215 - 2³⁰ = 50185143391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691427 + ... + 761963.

It is an arithmetic number, because the mean of its divisors is an integer number (3885233040).

Almost surely, 2^51258885215 is an apocalyptic number.

51258885215 is a deficient number, since it is larger than the sum of its proper divisors (10904843425).

51258885215 is a wasteful number, since it uses less digits than its factorization.

51258885215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72082.

The product of its digits is 1280000, while the sum is 50.

The spelling of 51258885215 in words is "fifty-one billion, two hundred fifty-eight million, eight hundred eighty-five thousand, two hundred fifteen".