25412432531 has 8 divisors (see below), whose sum is σ = 26774424720. Its totient is φ = 24052889952.

The previous prime is 25412432503. The next prime is 25412432567. The reversal of 25412432531 is 13523421452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25412432531 - 2¹⁴ = 25412416147 is a prime.

It is a super-2 number, since 2×25412432531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25412402531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591080 + ... + 632613.

It is an arithmetic number, because the mean of its divisors is an integer number (3346803090).

Almost surely, 2^25412432531 is an apocalyptic number.

25412432531 is a deficient number, since it is larger than the sum of its proper divisors (1361992189).

25412432531 is a wasteful number, since it uses less digits than its factorization.

25412432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224805.

The product of its digits is 28800, while the sum is 32.

Adding to 25412432531 its reverse (13523421452), we get a palindrome (38935853983).

The spelling of 25412432531 in words is "twenty-five billion, four hundred twelve million, four hundred thirty-two thousand, five hundred thirty-one".