625478479 has 2 divisors, whose sum is σ = 625478480. Its totient is φ = 625478478.

The previous prime is 625478443. The next prime is 625478509. The reversal of 625478479 is 974874526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625478479 - 2¹⁹ = 624954191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625478179) 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 as a sum of consecutive naturals, namely, 312739239 + 312739240.

It is an arithmetic number, because the mean of its divisors is an integer number (312739240).

Almost surely, 2^625478479 is an apocalyptic number.

625478479 is a deficient number, since it is larger than the sum of its proper divisors (1).

625478479 is an equidigital number, since it uses as much as digits as its factorization.

625478479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 52.

The square root of 625478479 is about 25009.5677491635. The cubic root of 625478479 is about 855.2061010390.

The spelling of 625478479 in words is "six hundred twenty-five million, four hundred seventy-eight thousand, four hundred seventy-nine".