725567505 has 16 divisors (see below), whose sum is σ = 1250208960. Its totient is φ = 357202368.

The previous prime is 725567483. The next prime is 725567539. The reversal of 725567505 is 505765527.

It is not a de Polignac number, because 725567505 - 2⁷ = 725567377 is a prime.

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, 1860235 + ... + 1860624.

It is an arithmetic number, because the mean of its divisors is an integer number (78138060).

Almost surely, 2^725567505 is an apocalyptic number.

It is an amenable number.

725567505 is a deficient number, since it is larger than the sum of its proper divisors (524641455).

725567505 is a wasteful number, since it uses less digits than its factorization.

725567505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720880.

The product of its (nonzero) digits is 367500, while the sum is 42.

The square root of 725567505 is about 26936.3602775134. The cubic root of 725567505 is about 898.5852278044.

The spelling of 725567505 in words is "seven hundred twenty-five million, five hundred sixty-seven thousand, five hundred five".