625747547 has 2 divisors, whose sum is σ = 625747548. Its totient is φ = 625747546.

The previous prime is 625747523. The next prime is 625747553. The reversal of 625747547 is 745747526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625747547 - 2⁶ = 625747483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (625747597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312873773 + 312873774.

It is an arithmetic number, because the mean of its divisors is an integer number (312873774).

Almost surely, 2^625747547 is an apocalyptic number.

625747547 is a deficient number, since it is larger than the sum of its proper divisors (1).

625747547 is an equidigital number, since it uses as much as digits as its factorization.

625747547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 47.

The square root of 625747547 is about 25014.9464720595. The cubic root of 625747547 is about 855.3287141610.

The spelling of 625747547 in words is "six hundred twenty-five million, seven hundred forty-seven thousand, five hundred forty-seven".