40445525 has 24 divisors (see below), whose sum is σ = 51455040. Its totient is φ = 31530240.

The previous prime is 40445491. The next prime is 40445527. The reversal of 40445525 is 52554404.

It is not a de Polignac number, because 40445525 - 2⁸ = 40445269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290906 + ... + 291044.

It is an arithmetic number, because the mean of its divisors is an integer number (2143960).

Almost surely, 2^40445525 is an apocalyptic number.

It is an amenable number.

40445525 is a deficient number, since it is larger than the sum of its proper divisors (11009515).

40445525 is a wasteful number, since it uses less digits than its factorization.

40445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 40445525 is about 6359.6796302959. The cubic root of 40445525 is about 343.2602325490.

Adding to 40445525 its reverse (52554404), we get a palindrome (92999929).

The spelling of 40445525 in words is "forty million, four hundred forty-five thousand, five hundred twenty-five".