40630525 has 12 divisors (see below), whose sum is σ = 54257812. Its totient is φ = 30003840.

The previous prime is 40630519. The next prime is 40630573. The reversal of 40630525 is 52503604.

It can be written as a sum of positive squares in 6 ways, for example, as 13704804 + 26925721 = 3702^2 + 5189^2 .

It is not a de Polignac number, because 40630525 - 2¹¹ = 40628477 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40630525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62184 + ... + 62833.

Almost surely, 2^40630525 is an apocalyptic number.

It is an amenable number.

40630525 is a deficient number, since it is larger than the sum of its proper divisors (13627287).

40630525 is a wasteful number, since it uses less digits than its factorization.

40630525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125040 (or 125035 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40630525 is about 6374.2077939145. The cubic root of 40630525 is about 343.7828001759.

The spelling of 40630525 in words is "forty million, six hundred thirty thousand, five hundred twenty-five".