625897 has 4 divisors (see below), whose sum is σ = 632196. Its totient is φ = 619600.

The previous prime is 625883. The next prime is 625909. The reversal of 625897 is 798526.

625897 is nontrivially palindromic in base 9.

625897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798526 = 2 ⋅399263.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 168921 = 676^2 + 411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625837) 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, 2998 + ... + 3199.

It is an arithmetic number, because the mean of its divisors is an integer number (158049).

2⁶²⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

625897 is a deficient number, since it is larger than the sum of its proper divisors (6299).

625897 is a wasteful number, since it uses less digits than its factorization.

625897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298.

The product of its digits is 30240, while the sum is 37.

The square root of 625897 is about 791.1365242485. The cubic root of 625897 is about 85.5396804063.

The spelling of 625897 in words is "six hundred twenty-five thousand, eight hundred ninety-seven".