625320663 has 16 divisors (see below), whose sum is σ = 930711936. Its totient is φ = 370167840.

The previous prime is 625320617. The next prime is 625320671. The reversal of 625320663 is 366023526.

625320663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 625320663 - 2⁶ = 625320599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625320613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218920 + ... + 221757.

It is an arithmetic number, because the mean of its divisors is an integer number (58169496).

Almost surely, 2^625320663 is an apocalyptic number.

625320663 is a deficient number, since it is larger than the sum of its proper divisors (305391273).

625320663 is a wasteful number, since it uses less digits than its factorization.

625320663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440734.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 625320663 is about 25006.4124376129. The cubic root of 625320663 is about 855.1341686100.

The spelling of 625320663 in words is "six hundred twenty-five million, three hundred twenty thousand, six hundred sixty-three".