725504566 has 8 divisors (see below), whose sum is σ = 1095464304. Its totient is φ = 360349800.

The previous prime is 725504543. The next prime is 725504599. The reversal of 725504566 is 665405527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200865 + ... + 1201468.

It is an arithmetic number, because the mean of its divisors is an integer number (136933038).

Almost surely, 2^725504566 is an apocalyptic number.

725504566 is a deficient number, since it is larger than the sum of its proper divisors (369959738).

725504566 is a wasteful number, since it uses less digits than its factorization.

725504566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402486.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 725504566 is about 26935.1919614470. The cubic root of 725504566 is about 898.5592446071.

The spelling of 725504566 in words is "seven hundred twenty-five million, five hundred four thousand, five hundred sixty-six".