625662893 has 2 divisors, whose sum is σ = 625662894. Its totient is φ = 625662892.

The previous prime is 625662889. The next prime is 625662923. The reversal of 625662893 is 398266526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524318404 + 101344489 = 22898^2 + 10067^2 .

It is a cyclic number.

It is not a de Polignac number, because 625662893 - 2² = 625662889 is a prime.

It is equal to p_32592998 and since 625662893 and 32592998 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625662853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312831446 + 312831447.

It is an arithmetic number, because the mean of its divisors is an integer number (312831447).

Almost surely, 2^625662893 is an apocalyptic number.

It is an amenable number.

625662893 is a deficient number, since it is larger than the sum of its proper divisors (1).

625662893 is an equidigital number, since it uses as much as digits as its factorization.

625662893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 47.

The square root of 625662893 is about 25013.2543464460. The cubic root of 625662893 is about 855.2901414902.

The spelling of 625662893 in words is "six hundred twenty-five million, six hundred sixty-two thousand, eight hundred ninety-three".