725271233 has 2 divisors, whose sum is σ = 725271234. Its totient is φ = 725271232.

The previous prime is 725271191. The next prime is 725271301. The reversal of 725271233 is 332172527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705805489 + 19465744 = 26567^2 + 4412^2 .

It is a cyclic number.

It is not a de Polignac number, because 725271233 - 2⁸ = 725270977 is a prime.

It is a super-2 number, since 2×725271233² = 1052036722834680578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725271233.

It is not a weakly prime, because it can be changed into another prime (725270233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362635616 + 362635617.

It is an arithmetic number, because the mean of its divisors is an integer number (362635617).

Almost surely, 2^725271233 is an apocalyptic number.

It is an amenable number.

725271233 is a deficient number, since it is larger than the sum of its proper divisors (1).

725271233 is an equidigital number, since it uses as much as digits as its factorization.

725271233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 32.

The square root of 725271233 is about 26930.8602350538. The cubic root of 725271233 is about 898.4629042967.

The spelling of 725271233 in words is "seven hundred twenty-five million, two hundred seventy-one thousand, two hundred thirty-three".