40564925 has 6 divisors (see below), whose sum is σ = 50300538. Its totient is φ = 32451920.

The previous prime is 40564921. The next prime is 40564963. The reversal of 40564925 is 52946504.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2199289 + 38365636 = 1483^2 + 6194^2 .

It is not a de Polignac number, because 40564925 - 2² = 40564921 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 (40564921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811274 + ... + 811323.

It is an arithmetic number, because the mean of its divisors is an integer number (8383423).

Almost surely, 2^40564925 is an apocalyptic number.

It is an amenable number.

40564925 is a deficient number, since it is larger than the sum of its proper divisors (9735613).

40564925 is a wasteful number, since it uses less digits than its factorization.

40564925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622607 (or 1622602 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 40564925 is about 6369.0599777361. The cubic root of 40564925 is about 343.5976823794.

The spelling of 40564925 in words is "forty million, five hundred sixty-four thousand, nine hundred twenty-five".