725456231 has 2 divisors, whose sum is σ = 725456232. Its totient is φ = 725456230.

The previous prime is 725456219. The next prime is 725456269. The reversal of 725456231 is 132654527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725456231 - 2¹⁸ = 725194087 is a prime.

It is a super-2 number, since 2×725456231² = 1052573486193450722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725456191 and 725456200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725446231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362728115 + 362728116.

It is an arithmetic number, because the mean of its divisors is an integer number (362728116).

Almost surely, 2^725456231 is an apocalyptic number.

725456231 is a deficient number, since it is larger than the sum of its proper divisors (1).

725456231 is an equidigital number, since it uses as much as digits as its factorization.

725456231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 725456231 is about 26934.2947002516. The cubic root of 725456231 is about 898.5392893797.

The spelling of 725456231 in words is "seven hundred twenty-five million, four hundred fifty-six thousand, two hundred thirty-one".