625119457 has 2 divisors, whose sum is σ = 625119458. Its totient is φ = 625119456.

The previous prime is 625119449. The next prime is 625119479. The reversal of 625119457 is 754911526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580617216 + 44502241 = 24096^2 + 6671^2 .

It is a cyclic number.

It is not a de Polignac number, because 625119457 - 2³ = 625119449 is a prime.

It is not a weakly prime, because it can be changed into another prime (625119487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312559728 + 312559729.

It is an arithmetic number, because the mean of its divisors is an integer number (312559729).

Almost surely, 2^625119457 is an apocalyptic number.

It is an amenable number.

625119457 is a deficient number, since it is larger than the sum of its proper divisors (1).

625119457 is an equidigital number, since it uses as much as digits as its factorization.

625119457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 625119457 is about 25002.3890258511. The cubic root of 625119457 is about 855.0424414941.

The spelling of 625119457 in words is "six hundred twenty-five million, one hundred nineteen thousand, four hundred fifty-seven".