51732571 has 12 divisors (see below), whose sum is σ = 57688920. Its totient is φ = 46007360.

The previous prime is 51732563. The next prime is 51732613. The reversal of 51732571 is 17523715.

It is not a de Polignac number, because 51732571 - 2³ = 51732563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51732511) 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, 23235 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (4807410).

Almost surely, 2^51732571 is an apocalyptic number.

51732571 is a deficient number, since it is larger than the sum of its proper divisors (5956349).

51732571 is a wasteful number, since it uses less digits than its factorization.

51732571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2187 counting only the distinct ones).

The product of its digits is 7350, while the sum is 31.

The square root of 51732571 is about 7192.5357837136. The cubic root of 51732571 is about 372.6101555513.

Subtracting from 51732571 its reverse (17523715), we obtain a triangular number (34208856 = T₈₂₇₁).

It can be divided in two parts, 5173 and 2571, that added together give a square (7744 = 88²).

The spelling of 51732571 in words is "fifty-one million, seven hundred thirty-two thousand, five hundred seventy-one".