625745 has 4 divisors (see below), whose sum is σ = 750900. Its totient is φ = 500592.

The previous prime is 625699. The next prime is 625763. The reversal of 625745 is 547526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231361 + 394384 = 481^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 625745 - 2⁸ = 625489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62570 + ... + 62579.

It is an arithmetic number, because the mean of its divisors is an integer number (187725).

2⁶²⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

625745 is a deficient number, since it is larger than the sum of its proper divisors (125155).

625745 is a wasteful number, since it uses less digits than its factorization.

625745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125154.

The product of its digits is 8400, while the sum is 29.

The square root of 625745 is about 791.0404540856. The cubic root of 625745 is about 85.5327553669.

The spelling of 625745 in words is "six hundred twenty-five thousand, seven hundred forty-five".