725405006 has 12 divisors (see below), whose sum is σ = 1091606712. Its totient is φ = 361538316.

The previous prime is 725404997. The next prime is 725405029. The reversal of 725405006 is 600504527.

It is a pancake number, because a pancake can be divided into 725405006 parts by 38089 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 725405006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 840131 + ... + 840993.

It is an arithmetic number, because the mean of its divisors is an integer number (90967226).

Almost surely, 2^725405006 is an apocalyptic number.

725405006 is a deficient number, since it is larger than the sum of its proper divisors (366201706).

725405006 is an frugal number, since it uses more digits than its factorization.

725405006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 725405006 is about 26933.3437582488. The cubic root of 725405006 is about 898.5181400411.

The spelling of 725405006 in words is "seven hundred twenty-five million, four hundred five thousand, six".