725245667 has 2 divisors, whose sum is σ = 725245668. Its totient is φ = 725245666.

The previous prime is 725245657. The next prime is 725245711. The reversal of 725245667 is 766542527.

It is an a-pointer prime, because the next prime (725245711) can be obtained adding 725245667 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725245667 - 2²⁶ = 658136803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725245657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362622833 + 362622834.

It is an arithmetic number, because the mean of its divisors is an integer number (362622834).

Almost surely, 2^725245667 is an apocalyptic number.

725245667 is a deficient number, since it is larger than the sum of its proper divisors (1).

725245667 is an equidigital number, since it uses as much as digits as its factorization.

725245667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 44.

The square root of 725245667 is about 26930.3855709494. The cubic root of 725245667 is about 898.4523471555.

The spelling of 725245667 in words is "seven hundred twenty-five million, two hundred forty-five thousand, six hundred sixty-seven".