40023525 has 24 divisors (see below), whose sum is σ = 70066944. Its totient is φ = 20089600.

The previous prime is 40023499. The next prime is 40023551. The reversal of 40023525 is 52532004.

It is an interprime number because it is at equal distance from previous prime (40023499) and next prime (40023551).

It is not a de Polignac number, because 40023525 - 2⁷ = 40023397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14421 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (2919456).

Almost surely, 2^40023525 is an apocalyptic number.

It is an amenable number.

40023525 is a deficient number, since it is larger than the sum of its proper divisors (30043419).

40023525 is a wasteful number, since it uses less digits than its factorization.

40023525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31421 (or 31416 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40023525 is about 6326.4148615152. The cubic root of 40023525 is about 342.0622215029.

Adding to 40023525 its reverse (52532004), we get a palindrome (92555529).

The spelling of 40023525 in words is "forty million, twenty-three thousand, five hundred twenty-five".