40212525 has 48 divisors (see below), whose sum is σ = 70076864. Its totient is φ = 20321280.

The previous prime is 40212521. The next prime is 40212547. The reversal of 40212525 is 52521204.

It is a happy number.

It is not a de Polignac number, because 40212525 - 2² = 40212521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119157 + ... + 119493.

Almost surely, 2^40212525 is an apocalyptic number.

It is an amenable number.

40212525 is a deficient number, since it is larger than the sum of its proper divisors (29864339).

40212525 is a wasteful number, since it uses less digits than its factorization.

40212525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40212525 is about 6341.3346387019. The cubic root of 40212525 is about 342.5998075224.

Adding to 40212525 its reverse (52521204), we get a palindrome (92733729).

The spelling of 40212525 in words is "forty million, two hundred twelve thousand, five hundred twenty-five".