40512925 has 6 divisors (see below), whose sum is σ = 50236058. Its totient is φ = 32410320.

The previous prime is 40512907. The next prime is 40512937. The reversal of 40512925 is 52921504.

It can be written as a sum of positive squares in 3 ways, for example, as 7634169 + 32878756 = 2763^2 + 5734^2 .

It is not a de Polignac number, because 40512925 - 2¹³ = 40504733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40512893 and 40512902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 810234 + ... + 810283.

Almost surely, 2^40512925 is an apocalyptic number.

It is an amenable number.

40512925 is a deficient number, since it is larger than the sum of its proper divisors (9723133).

40512925 is a wasteful number, since it uses less digits than its factorization.

40512925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620527 (or 1620522 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 40512925 is about 6364.9764335777. The cubic root of 40512925 is about 343.4508008103.

The spelling of 40512925 in words is "forty million, five hundred twelve thousand, nine hundred twenty-five".