63740925 has 30 divisors (see below), whose sum is σ = 118073978. Its totient is φ = 33994080.

The previous prime is 63740923. The next prime is 63740933. The reversal of 63740925 is 52904736.

It can be written as a sum of positive squares in 3 ways, for example, as 6859161 + 56881764 = 2619^2 + 7542^2 .

It is not a de Polignac number, because 63740925 - 2¹ = 63740923 is a prime.

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 63740925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63740923) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13714 + ... + 17763.

Almost surely, 2^63740925 is an apocalyptic number.

It is an amenable number.

63740925 is a deficient number, since it is larger than the sum of its proper divisors (54333053).

63740925 is a wasteful number, since it uses less digits than its factorization.

63740925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31499 (or 31485 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 63740925 is about 7983.7913925653. The cubic root of 63740925 is about 399.4595304773.

The spelling of 63740925 in words is "sixty-three million, seven hundred forty thousand, nine hundred twenty-five".