625464533 has 2 divisors, whose sum is σ = 625464534. Its totient is φ = 625464532.

The previous prime is 625464523. The next prime is 625464569. The reversal of 625464533 is 335464526.

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., 538564849 + 86899684 = 23207^2 + 9322^2 .

It is a cyclic number.

It is not a de Polignac number, because 625464533 - 2⁴ = 625464517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625464523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312732266 + 312732267.

It is an arithmetic number, because the mean of its divisors is an integer number (312732267).

Almost surely, 2^625464533 is an apocalyptic number.

It is an amenable number.

625464533 is a deficient number, since it is larger than the sum of its proper divisors (1).

625464533 is an equidigital number, since it uses as much as digits as its factorization.

625464533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 38.

The square root of 625464533 is about 25009.2889343140. The cubic root of 625464533 is about 855.1997449488.

The spelling of 625464533 in words is "six hundred twenty-five million, four hundred sixty-four thousand, five hundred thirty-three".