625601 has 4 divisors (see below), whose sum is σ = 633600. Its totient is φ = 617604.

The previous prime is 625591. The next prime is 625609. The reversal of 625601 is 106526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625601 - 2¹⁰ = 624577 is a prime.

It is a super-2 number, since 2×625601² = 782753222402, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625601.

It is not an unprimeable number, because it can be changed into a prime (625609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3881 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (158400).

2⁶²⁵⁶⁰¹ is an apocalyptic number.

It is an amenable number.

625601 is a deficient number, since it is larger than the sum of its proper divisors (7999).

625601 is an equidigital number, since it uses as much as digits as its factorization.

625601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 625601 is about 790.9494294833. The cubic root of 625601 is about 85.5261937687.

The spelling of 625601 in words is "six hundred twenty-five thousand, six hundred one".