52432531 has 4 divisors (see below), whose sum is σ = 52460712. Its totient is φ = 52404352.

The previous prime is 52432519. The next prime is 52432547. The reversal of 52432531 is 13523425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52432531 - 2²⁵ = 18878099 is a prime.

It is a super-2 number, since 2×52432531² = 5498340614131922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52432496 and 52432505.

It is not an unprimeable number, because it can be changed into a prime (52432561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11086 + ... + 15091.

It is an arithmetic number, because the mean of its divisors is an integer number (13115178).

Almost surely, 2^52432531 is an apocalyptic number.

52432531 is a deficient number, since it is larger than the sum of its proper divisors (28181).

52432531 is a wasteful number, since it uses less digits than its factorization.

52432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28180.

The product of its digits is 3600, while the sum is 25.

The square root of 52432531 is about 7241.0310729895. The cubic root of 52432531 is about 374.2831484628.

Adding to 52432531 its reverse (13523425), we get a palindrome (65955956).

The spelling of 52432531 in words is "fifty-two million, four hundred thirty-two thousand, five hundred thirty-one".