725105615 has 8 divisors (see below), whose sum is σ = 937059648. Its totient is φ = 535462560.

The previous prime is 725105609. The next prime is 725105627. The reversal of 725105615 is 516501527.

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

It is not a de Polignac number, because 725105615 - 2²⁰ = 724057039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5577671 + ... + 5577800.

It is an arithmetic number, because the mean of its divisors is an integer number (117132456).

Almost surely, 2^725105615 is an apocalyptic number.

725105615 is a deficient number, since it is larger than the sum of its proper divisors (211954033).

725105615 is a wasteful number, since it uses less digits than its factorization.

725105615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11155489.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 725105615 is about 26927.7851855662. The cubic root of 725105615 is about 898.3945101335.

It can be divided in two parts, 72510 and 5615, that added together give a 7-th power (78125 = 5⁷).

The spelling of 725105615 in words is "seven hundred twenty-five million, one hundred five thousand, six hundred fifteen".