40425525 has 36 divisors (see below), whose sum is σ = 82753632. Its totient is φ = 18479520.

The previous prime is 40425433. The next prime is 40425527. The reversal of 40425525 is 52552404.

40425525 is a `hidden beast` number, since 404 + 255 + 2 + 5 = 666.

It is not a de Polignac number, because 40425525 - 2⁷ = 40425397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425527) 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, 11259 + ... + 14408.

It is an arithmetic number, because the mean of its divisors is an integer number (2298712).

Almost surely, 2^40425525 is an apocalyptic number.

40425525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40425525 is an abundant number, since it is smaller than the sum of its proper divisors (42328107).

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

40425525 is a wasteful number, since it uses less digits than its factorization.

40425525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25690 (or 25682 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 40425525 is about 6358.1070296119. The cubic root of 40425525 is about 343.2036433750.

Adding to 40425525 its reverse (52552404), we get a palindrome (92977929).

The spelling of 40425525 in words is "forty million, four hundred twenty-five thousand, five hundred twenty-five".