625293663 has 16 divisors (see below), whose sum is σ = 882233856. Its totient is φ = 393118880.

The previous prime is 625293661. The next prime is 625293671. The reversal of 625293663 is 366392526.

It is a cyclic number.

It is not a de Polignac number, because 625293663 - 2¹ = 625293661 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625293661) 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, 58920 + ... + 68717.

It is an arithmetic number, because the mean of its divisors is an integer number (55139616).

Almost surely, 2^625293663 is an apocalyptic number.

625293663 is a deficient number, since it is larger than the sum of its proper divisors (256940193).

625293663 is a wasteful number, since it uses less digits than its factorization.

625293663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127734.

The product of its digits is 349920, while the sum is 42.

The square root of 625293663 is about 25005.8725702584. The cubic root of 625293663 is about 855.1218608154.

The spelling of 625293663 in words is "six hundred twenty-five million, two hundred ninety-three thousand, six hundred sixty-three".