625249 has 4 divisors (see below), whose sum is σ = 626836. Its totient is φ = 623664.

The previous prime is 625237. The next prime is 625253. The reversal of 625249 is 942526.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 342225 + 283024 = 585^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 625249 - 2⁹ = 624737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625279) 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, 307 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (156709).

2⁶²⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

625249 is a deficient number, since it is larger than the sum of its proper divisors (1587).

625249 is an equidigital number, since it uses as much as digits as its factorization.

625249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its digits is 4320, while the sum is 28.

The square root of 625249 is about 790.7268807875. The cubic root of 625249 is about 85.5101500666.

The spelling of 625249 in words is "six hundred twenty-five thousand, two hundred forty-nine".