625249663 has 8 divisors (see below), whose sum is σ = 660539120. Its totient is φ = 590198400.

The previous prime is 625249621. The next prime is 625249693. The reversal of 625249663 is 366942526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625249663 - 2⁹ = 625249151 is a prime.

It is a super-2 number, since 2×625249663² = 781874282163227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625249693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54138 + ... + 64663.

It is an arithmetic number, because the mean of its divisors is an integer number (82567390).

Almost surely, 2^625249663 is an apocalyptic number.

625249663 is a deficient number, since it is larger than the sum of its proper divisors (35289457).

625249663 is a wasteful number, since it uses less digits than its factorization.

625249663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119097.

The product of its digits is 466560, while the sum is 43.

The square root of 625249663 is about 25004.9927614467. The cubic root of 625249663 is about 855.1018029095.

The spelling of 625249663 in words is "six hundred twenty-five million, two hundred forty-nine thousand, six hundred sixty-three".