625537273 has 4 divisors (see below), whose sum is σ = 625587300. Its totient is φ = 625487248.

The previous prime is 625537261. The next prime is 625537277. The reversal of 625537273 is 372735526.

625537273 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 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 394101904 + 231435369 = 19852^2 + 15213^2 .

It is a cyclic number.

It is not a de Polignac number, because 625537273 - 2¹³ = 625529081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625537277) 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, 12003 + ... + 37351.

It is an arithmetic number, because the mean of its divisors is an integer number (156396825).

Almost surely, 2^625537273 is an apocalyptic number.

It is an amenable number.

625537273 is a deficient number, since it is larger than the sum of its proper divisors (50027).

625537273 is a wasteful number, since it uses less digits than its factorization.

625537273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50026.

The product of its digits is 264600, while the sum is 40.

The square root of 625537273 is about 25010.7431516938. The cubic root of 625537273 is about 855.2328962120.

The spelling of 625537273 in words is "six hundred twenty-five million, five hundred thirty-seven thousand, two hundred seventy-three".