51836715 has 72 divisors (see below), whose sum is σ = 106310880. Its totient is φ = 22885632.

The previous prime is 51836713. The next prime is 51836753. The reversal of 51836715 is 51763815.

It is not a de Polignac number, because 51836715 - 2¹ = 51836713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51836715.

It is not an unprimeable number, because it can be changed into a prime (51836711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 582391 + ... + 582479.

It is an arithmetic number, because the mean of its divisors is an integer number (1476540).

Almost surely, 2^51836715 is an apocalyptic number.

51836715 is an abundant number, since it is smaller than the sum of its proper divisors (54474165).

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

51836715 is a wasteful number, since it uses less digits than its factorization.

51836715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 147 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 51836715 is about 7199.7718713859. The cubic root of 51836715 is about 372.8600245768.

Subtracting from 51836715 its reverse (51763815), we obtain a square (72900 = 270²).

The spelling of 51836715 in words is "fifty-one million, eight hundred thirty-six thousand, seven hundred fifteen".