40432525 has 48 divisors (see below), whose sum is σ = 61424640. Its totient is φ = 25804800.

The previous prime is 40432517. The next prime is 40432531. The reversal of 40432525 is 52523404.

It is not a de Polignac number, because 40432525 - 2³ = 40432517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 40432525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157197 + ... + 157453.

It is an arithmetic number, because the mean of its divisors is an integer number (1279680).

Almost surely, 2^40432525 is an apocalyptic number.

It is an amenable number.

40432525 is a deficient number, since it is larger than the sum of its proper divisors (20992115).

40432525 is a wasteful number, since it uses less digits than its factorization.

40432525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40432525 is about 6358.6574840921. The cubic root of 40432525 is about 343.2234517086.

40432525 divided by its sum of digits (25) gives a triangular number (1617301 = T₁₇₉₈).

Adding to 40432525 its reverse (52523404), we get a palindrome (92955929).

The spelling of 40432525 in words is "forty million, four hundred thirty-two thousand, five hundred twenty-five".