625529 has 2 divisors, whose sum is σ = 625530. Its totient is φ = 625528.

The previous prime is 625517. The next prime is 625543. The reversal of 625529 is 925526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565504 + 60025 = 752^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625529 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625529.

It is not a weakly prime, because it can be changed into another prime (625589) 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, 312764 + 312765.

It is an arithmetic number, because the mean of its divisors is an integer number (312765).

2⁶²⁵⁵²⁹ is an apocalyptic number.

It is an amenable number.

625529 is a deficient number, since it is larger than the sum of its proper divisors (1).

625529 is an equidigital number, since it uses as much as digits as its factorization.

625529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 625529 is about 790.9039132537. The cubic root of 625529 is about 85.5229125921.

It can be divided in two parts, 625 and 529, that multiplied together give a square (330625 = 575²).

The spelling of 625529 in words is "six hundred twenty-five thousand, five hundred twenty-nine".