625485121 has 2 divisors, whose sum is σ = 625485122. Its totient is φ = 625485120.

The previous prime is 625485083. The next prime is 625485167. The reversal of 625485121 is 121584526.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623051521 + 2433600 = 24961^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 625485121 - 2²¹ = 623387969 is a prime.

It is not a weakly prime, because it can be changed into another prime (625485191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312742560 + 312742561.

It is an arithmetic number, because the mean of its divisors is an integer number (312742561).

Almost surely, 2^625485121 is an apocalyptic number.

It is an amenable number.

625485121 is a deficient number, since it is larger than the sum of its proper divisors (1).

625485121 is an equidigital number, since it uses as much as digits as its factorization.

625485121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 34.

The square root of 625485121 is about 25009.7005379913. The cubic root of 625485121 is about 855.2091281929.

The spelling of 625485121 in words is "six hundred twenty-five million, four hundred eighty-five thousand, one hundred twenty-one".