625505533 has 2 divisors, whose sum is σ = 625505534. Its totient is φ = 625505532.

The previous prime is 625505521. The next prime is 625505549. The reversal of 625505533 is 335505526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581919129 + 43586404 = 24123^2 + 6602^2 .

It is a cyclic number.

It is not a de Polignac number, because 625505533 - 2²¹ = 623408381 is a prime.

It is a super-2 number, since 2×625505533² = 782514343627228178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625505333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312752766 + 312752767.

It is an arithmetic number, because the mean of its divisors is an integer number (312752767).

Almost surely, 2^625505533 is an apocalyptic number.

It is an amenable number.

625505533 is a deficient number, since it is larger than the sum of its proper divisors (1).

625505533 is an equidigital number, since it uses as much as digits as its factorization.

625505533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 34.

The square root of 625505533 is about 25010.1086163175. The cubic root of 625505533 is about 855.2184310195.

The spelling of 625505533 in words is "six hundred twenty-five million, five hundred five thousand, five hundred thirty-three".