725024191 has 2 divisors, whose sum is σ = 725024192. Its totient is φ = 725024190.

The previous prime is 725024129. The next prime is 725024207. The reversal of 725024191 is 191420527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 725024191 - 2¹⁹ = 724499903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725021191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362512095 + 362512096.

It is an arithmetic number, because the mean of its divisors is an integer number (362512096).

Almost surely, 2^725024191 is an apocalyptic number.

725024191 is a deficient number, since it is larger than the sum of its proper divisors (1).

725024191 is an equidigital number, since it uses as much as digits as its factorization.

725024191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 725024191 is about 26926.2732475179. The cubic root of 725024191 is about 898.3608811875.

Subtracting from 725024191 its sum of digits (31), we obtain a triangular number (725024160 = T₃₈₀₇₉).

The spelling of 725024191 in words is "seven hundred twenty-five million, twenty-four thousand, one hundred ninety-one".