51732315 has 12 divisors (see below), whose sum is σ = 89669424. Its totient is φ = 27590544.

The previous prime is 51732287. The next prime is 51732319. The reversal of 51732315 is 51323715.

It is not a de Polignac number, because 51732315 - 2²⁰ = 50683739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51732319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574759 + ... + 574848.

It is an arithmetic number, because the mean of its divisors is an integer number (7472452).

Almost surely, 2^51732315 is an apocalyptic number.

51732315 is a deficient number, since it is larger than the sum of its proper divisors (37937109).

51732315 is a wasteful number, since it uses less digits than its factorization.

51732315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149618 (or 1149615 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 51732315 is about 7192.5179874645. The cubic root of 51732315 is about 372.6095409265.

The spelling of 51732315 in words is "fifty-one million, seven hundred thirty-two thousand, three hundred fifteen".