63725590 has 16 divisors (see below), whose sum is σ = 114797088. Its totient is φ = 25470016.

The previous prime is 63725567. The next prime is 63725593. The reversal of 63725590 is 9552736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63725593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22599 + ... + 25261.

It is an arithmetic number, because the mean of its divisors is an integer number (7174818).

Almost surely, 2^63725590 is an apocalyptic number.

63725590 is a deficient number, since it is larger than the sum of its proper divisors (51071498).

63725590 is a wasteful number, since it uses less digits than its factorization.

63725590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 63725590 is about 7982.8309514858. The cubic root of 63725590 is about 399.4274934816.

The spelling of 63725590 in words is "sixty-three million, seven hundred twenty-five thousand, five hundred ninety".