40557525 has 24 divisors (see below), whose sum is σ = 67239744. Its totient is φ = 21571200.

The previous prime is 40557521. The next prime is 40557527. The reversal of 40557525 is 52575504.

It is not a de Polignac number, because 40557525 - 2² = 40557521 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 (40557521) 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, 46897 + ... + 47753.

It is an arithmetic number, because the mean of its divisors is an integer number (2801656).

Almost surely, 2^40557525 is an apocalyptic number.

It is an amenable number.

40557525 is a deficient number, since it is larger than the sum of its proper divisors (26682219).

40557525 is a wasteful number, since it uses less digits than its factorization.

40557525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 40557525 is about 6368.4790177875. The cubic root of 40557525 is about 343.5767876658.

The spelling of 40557525 in words is "forty million, five hundred fifty-seven thousand, five hundred twenty-five".