51502053135 has 32 divisors (see below), whose sum is σ = 89307288000. Its totient is φ = 25193346048.

The previous prime is 51502053131. The next prime is 51502053137. The reversal of 51502053135 is 53135020515.

It is not a de Polignac number, because 51502053135 - 2² = 51502053131 is a prime.

It is a super-2 number, since 2×51502053135² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51502053131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810510 + ... + 871739.

It is an arithmetic number, because the mean of its divisors is an integer number (2790852750).

Almost surely, 2^51502053135 is an apocalyptic number.

51502053135 is a deficient number, since it is larger than the sum of its proper divisors (37805234865).

51502053135 is a wasteful number, since it uses less digits than its factorization.

51502053135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682427.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 51502053135 in words is "fifty-one billion, five hundred two million, fifty-three thousand, one hundred thirty-five".