40431462525 has 192 divisors, whose sum is σ = 82494720000. Its totient is φ = 19310607360.

The previous prime is 40431462503. The next prime is 40431462529. The reversal of 40431462525 is 52526413404.

40431462525 is a `hidden beast` number, since 4 + 0 + 4 + 3 + 1 + 4 + 625 + 25 = 666.

It is not a de Polignac number, because 40431462525 - 2⁷ = 40431462397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40431462525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40431462529) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 81024726 + ... + 81025224.

It is an arithmetic number, because the mean of its divisors is an integer number (429660000).

Almost surely, 2^40431462525 is an apocalyptic number.

40431462525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40431462525 is an abundant number, since it is smaller than the sum of its proper divisors (42063257475).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40431462525 is a wasteful number, since it uses less digits than its factorization.

40431462525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 40431462525 its reverse (52526413404), we get a palindrome (92957875929).

The spelling of 40431462525 in words is "forty billion, four hundred thirty-one million, four hundred sixty-two thousand, five hundred twenty-five".