725736269 has 2 divisors, whose sum is σ = 725736270. Its totient is φ = 725736268.

The previous prime is 725736251. The next prime is 725736283. The reversal of 725736269 is 962637527.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425927044 + 299809225 = 20638^2 + 17315^2 .

It is a cyclic number.

It is not a de Polignac number, because 725736269 - 2⁸ = 725736013 is a prime.

It is a super-2 number, since 2×725736269² = 1053386264284080722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725736229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362868134 + 362868135.

It is an arithmetic number, because the mean of its divisors is an integer number (362868135).

Almost surely, 2^725736269 is an apocalyptic number.

It is an amenable number.

725736269 is a deficient number, since it is larger than the sum of its proper divisors (1).

725736269 is an equidigital number, since it uses as much as digits as its factorization.

725736269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The square root of 725736269 is about 26939.4927383572. The cubic root of 725736269 is about 898.6548914724.

The spelling of 725736269 in words is "seven hundred twenty-five million, seven hundred thirty-six thousand, two hundred sixty-nine".