725424745 has 16 divisors (see below), whose sum is σ = 884844288. Its totient is φ = 570810240.

The previous prime is 725424719. The next prime is 725424751. The reversal of 725424745 is 547424527.

It is not a de Polignac number, because 725424745 - 2¹¹ = 725422697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725424698 and 725424707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303997 + ... + 306373.

It is an arithmetic number, because the mean of its divisors is an integer number (55302768).

Almost surely, 2^725424745 is an apocalyptic number.

It is an amenable number.

725424745 is a deficient number, since it is larger than the sum of its proper divisors (159419543).

725424745 is a wasteful number, since it uses less digits than its factorization.

725424745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360.

The product of its digits is 313600, while the sum is 40.

The square root of 725424745 is about 26933.7101974459. The cubic root of 725424745 is about 898.5262898280.

The spelling of 725424745 in words is "seven hundred twenty-five million, four hundred twenty-four thousand, seven hundred forty-five".