51315036 has 24 divisors (see below), whose sum is σ = 123864720. Its totient is φ = 16515072.

The previous prime is 51315031. The next prime is 51315053. The reversal of 51315036 is 63051315.

It is a junction number, because it is equal to n+sod(n) for n = 51314997 and 51315015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51315031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73381 + ... + 74076.

It is an arithmetic number, because the mean of its divisors is an integer number (5161030).

Almost surely, 2^51315036 is an apocalyptic number.

It is an amenable number.

51315036 is an abundant number, since it is smaller than the sum of its proper divisors (72549684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51315036 is a wasteful number, since it uses less digits than its factorization.

51315036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147493 (or 147491 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 51315036 is about 7163.4514027806. The cubic root of 51315036 is about 371.6049975324.

The spelling of 51315036 in words is "fifty-one million, three hundred fifteen thousand, thirty-six".