625425249 has 8 divisors (see below), whose sum is σ = 834628192. Its totient is φ = 416586240.

The previous prime is 625425247. The next prime is 625425259. The reversal of 625425249 is 942524526.

625425249 = 81² + 82² + ... + 1233².

625425249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 625425249 - 2¹ = 625425247 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (625425247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86947 + ... + 93864.

It is an arithmetic number, because the mean of its divisors is an integer number (104328524).

Almost surely, 2^625425249 is an apocalyptic number.

It is an amenable number.

625425249 is a deficient number, since it is larger than the sum of its proper divisors (209202943).

625425249 is a wasteful number, since it uses less digits than its factorization.

625425249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181967.

The product of its digits is 172800, while the sum is 39.

The square root of 625425249 is about 25008.5035337983. The cubic root of 625425249 is about 855.1818401925.

The spelling of 625425249 in words is "six hundred twenty-five million, four hundred twenty-five thousand, two hundred forty-nine".