40232031525 has 36 divisors (see below), whose sum is σ = 82354333152. Its totient is φ = 18391785120.

The previous prime is 40232031491. The next prime is 40232031527. The reversal of 40232031525 is 52513023204.

It is a happy number.

40232031525 is a `hidden beast` number, since 4 + 0 + 2 + 320 + 315 + 25 = 666.

40232031525 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40232031525 - 2¹³ = 40232023333 is a prime.

40232031525 is strictly pandigital in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40232031527) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12770499 + ... + 12773648.

Almost surely, 2^40232031525 is an apocalyptic number.

40232031525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40232031525 is an abundant number, since it is smaller than the sum of its proper divisors (42122301627).

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

40232031525 is a wasteful number, since it uses less digits than its factorization.

40232031525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25544170 (or 25544162 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40232031525 its reverse (52513023204), we get a palindrome (92745054729).

The spelling of 40232031525 in words is "forty billion, two hundred thirty-two million, thirty-one thousand, five hundred twenty-five".