725267345 has 48 divisors (see below), whose sum is σ = 1021797504. Its totient is φ = 492096000.

The previous prime is 725267341. The next prime is 725267357. The reversal of 725267345 is 543762527.

It is not a de Polignac number, because 725267345 - 2² = 725267341 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725267341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1552802 + ... + 1553268.

It is an arithmetic number, because the mean of its divisors is an integer number (21287448).

Almost surely, 2^725267345 is an apocalyptic number.

It is an amenable number.

725267345 is a deficient number, since it is larger than the sum of its proper divisors (296530159).

725267345 is a wasteful number, since it uses less digits than its factorization.

725267345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 651 counting only the distinct ones).

The product of its digits is 352800, while the sum is 41.

The square root of 725267345 is about 26930.7880501110. The cubic root of 725267345 is about 898.4612988146.

The spelling of 725267345 in words is "seven hundred twenty-five million, two hundred sixty-seven thousand, three hundred forty-five".