51232435135 has 64 divisors (see below), whose sum is σ = 75316220928. Its totient is φ = 32656656384.

The previous prime is 51232435109. The next prime is 51232435153. The reversal of 51232435135 is 53153423215.

It is a cyclic number.

It is not a de Polignac number, because 51232435135 - 2¹³ = 51232426943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51232435135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25273992 + ... + 25276018.

It is an arithmetic number, because the mean of its divisors is an integer number (1176815952).

Almost surely, 2^51232435135 is an apocalyptic number.

51232435135 is a deficient number, since it is larger than the sum of its proper divisors (24083785793).

51232435135 is a wasteful number, since it uses less digits than its factorization.

51232435135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its digits is 54000, while the sum is 34.

The spelling of 51232435135 in words is "fifty-one billion, two hundred thirty-two million, four hundred thirty-five thousand, one hundred thirty-five".