625313253 has 4 divisors (see below), whose sum is σ = 833751008. Its totient is φ = 416875500.

The previous prime is 625313251. The next prime is 625313279. The reversal of 625313253 is 352313526.

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 not a de Polignac number, because 625313253 - 2¹ = 625313251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625313253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625313251) 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, 104218873 + ... + 104218878.

It is an arithmetic number, because the mean of its divisors is an integer number (208437752).

Almost surely, 2^625313253 is an apocalyptic number.

It is an amenable number.

625313253 is a deficient number, since it is larger than the sum of its proper divisors (208437755).

625313253 is a wasteful number, since it uses less digits than its factorization.

625313253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208437754.

The product of its digits is 16200, while the sum is 30.

The square root of 625313253 is about 25006.2642751771. The cubic root of 625313253 is about 855.1307908395.

Adding to 625313253 its reverse (352313526), we get a palindrome (977626779).

The spelling of 625313253 in words is "six hundred twenty-five million, three hundred thirteen thousand, two hundred fifty-three".