625245473 has 4 divisors (see below), whose sum is σ = 630981780. Its totient is φ = 619509168.

The previous prime is 625245469. The next prime is 625245487. The reversal of 625245473 is 374542526.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374542526 = 2 ⋅187271263.

It can be written as a sum of positive squares in 2 ways, for example, as 144408289 + 480837184 = 12017^2 + 21928^2 .

It is a cyclic number.

It is not a de Polignac number, because 625245473 - 2² = 625245469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625245403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2867990 + ... + 2868207.

It is an arithmetic number, because the mean of its divisors is an integer number (157745445).

Almost surely, 2^625245473 is an apocalyptic number.

It is an amenable number.

625245473 is a deficient number, since it is larger than the sum of its proper divisors (5736307).

625245473 is a wasteful number, since it uses less digits than its factorization.

625245473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736306.

The product of its digits is 201600, while the sum is 38.

The square root of 625245473 is about 25004.9089780387. The cubic root of 625245473 is about 855.0998928007.

Adding to 625245473 its reverse (374542526), we get a palindrome (999787999).

The spelling of 625245473 in words is "six hundred twenty-five million, two hundred forty-five thousand, four hundred seventy-three".