725224499 has 2 divisors, whose sum is σ = 725224500. Its totient is φ = 725224498.

The previous prime is 725224481. The next prime is 725224543. The reversal of 725224499 is 994422527.

It is a happy number.

It is an a-pointer prime, because the next prime (725224543) can be obtained adding 725224499 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725224499 - 2¹⁶ = 725158963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725224099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362612249 + 362612250.

It is an arithmetic number, because the mean of its divisors is an integer number (362612250).

Almost surely, 2^725224499 is an apocalyptic number.

725224499 is a deficient number, since it is larger than the sum of its proper divisors (1).

725224499 is an equidigital number, since it uses as much as digits as its factorization.

725224499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 725224499 is about 26929.9925547706. The cubic root of 725224499 is about 898.4436059224.

The spelling of 725224499 in words is "seven hundred twenty-five million, two hundred twenty-four thousand, four hundred ninety-nine".