52432431 has 4 divisors (see below), whose sum is σ = 69909912. Its totient is φ = 34954952.

The previous prime is 52432421. The next prime is 52432447. The reversal of 52432431 is 13423425.

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 52432431 - 2²³ = 44043823 is a prime.

It is a super-2 number, since 2×52432431² = 5498319641139522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52432421) 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 3 ways as a sum of consecutive naturals, for example, 8738736 + ... + 8738741.

It is an arithmetic number, because the mean of its divisors is an integer number (17477478).

Almost surely, 2^52432431 is an apocalyptic number.

52432431 is a deficient number, since it is larger than the sum of its proper divisors (17477481).

52432431 is a wasteful number, since it uses less digits than its factorization.

52432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17477480.

The product of its digits is 2880, while the sum is 24.

The square root of 52432431 is about 7241.0241678923. The cubic root of 52432431 is about 374.2829105167.

Adding to 52432431 its reverse (13423425), we get a palindrome (65855856).

The spelling of 52432431 in words is "fifty-two million, four hundred thirty-two thousand, four hundred thirty-one".