725625533 has 2 divisors, whose sum is σ = 725625534. Its totient is φ = 725625532.

The previous prime is 725625499. The next prime is 725625557. The reversal of 725625533 is 335526527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517198564 + 208426969 = 22742^2 + 14437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725625533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725625133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362812766 + 362812767.

It is an arithmetic number, because the mean of its divisors is an integer number (362812767).

Almost surely, 2^725625533 is an apocalyptic number.

It is an amenable number.

725625533 is a deficient number, since it is larger than the sum of its proper divisors (1).

725625533 is an equidigital number, since it uses as much as digits as its factorization.

725625533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 38.

The square root of 725625533 is about 26937.4373873982. The cubic root of 725625533 is about 898.6091822554.

The spelling of 725625533 in words is "seven hundred twenty-five million, six hundred twenty-five thousand, five hundred thirty-three".