725073505 has 16 divisors (see below), whose sum is σ = 977760000. Its totient is φ = 512157888.

The previous prime is 725073499. The next prime is 725073509. The reversal of 725073505 is 505370527.

It is a cyclic number.

It is not a de Polignac number, because 725073505 - 2¹⁵ = 725040737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725073509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241005 + ... + 243994.

It is an arithmetic number, because the mean of its divisors is an integer number (61110000).

Almost surely, 2^725073505 is an apocalyptic number.

It is an amenable number.

725073505 is a deficient number, since it is larger than the sum of its proper divisors (252686495).

725073505 is a wasteful number, since it uses less digits than its factorization.

725073505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485040.

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 725073505 is about 26927.1889546607. The cubic root of 725073505 is about 898.3812486753.

The spelling of 725073505 in words is "seven hundred twenty-five million, seventy-three thousand, five hundred five".