625747523 has 2 divisors, whose sum is σ = 625747524. Its totient is φ = 625747522.

The previous prime is 625747489. The next prime is 625747547. The reversal of 625747523 is 325747526.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625747523 is a prime.

It is not a weakly prime, because it can be changed into another prime (625747553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312873761 + 312873762.

It is an arithmetic number, because the mean of its divisors is an integer number (312873762).

Almost surely, 2^625747523 is an apocalyptic number.

625747523 is a deficient number, since it is larger than the sum of its proper divisors (1).

625747523 is an equidigital number, since it uses as much as digits as its factorization.

625747523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 41.

The square root of 625747523 is about 25014.9459923463. The cubic root of 625747523 is about 855.3287032258.

The spelling of 625747523 in words is "six hundred twenty-five million, seven hundred forty-seven thousand, five hundred twenty-three".