625653 has 12 divisors (see below), whose sum is σ = 1032928. Its totient is φ = 357480.

The previous prime is 625643. The next prime is 625657. The reversal of 625653 is 356526.

625653 is a `hidden beast` number, since 6 + 2 + 5 + 653 = 666.

It is not a de Polignac number, because 625653 - 2⁴ = 625637 is a prime.

It is a d-powerful number, because it can be written as 6³ + 2¹⁹ + 6³ + 5⁵ + 5⁷ + 3⁹ .

It is a Duffinian number.

It is a Curzon number.

625653 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625653.

It is not an unprimeable number, because it can be changed into a prime (625657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4903 + ... + 5028.

2⁶²⁵⁶⁵³ is an apocalyptic number.

625653 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

625653 is a deficient number, since it is larger than the sum of its proper divisors (407275).

625653 is a wasteful number, since it uses less digits than its factorization.

625653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944 (or 9941 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 625653 is about 790.9823006869. The cubic root of 625653 is about 85.5285633509.

The spelling of 625653 in words is "six hundred twenty-five thousand, six hundred fifty-three".