725537015 has 8 divisors (see below), whose sum is σ = 995022240. Its totient is φ = 497511072.

The previous prime is 725537009. The next prime is 725537039. The reversal of 725537015 is 510735527.

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

It is a cyclic number.

It is not a de Polignac number, because 725537015 - 2⁶ = 725536951 is a prime.

It is a super-2 number, since 2×725537015² = 1052807920270220450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 20729629 = 725537015 / (7 + 2 + 5 + 5 + 3 + 7 + 0 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10364780 + ... + 10364849.

It is an arithmetic number, because the mean of its divisors is an integer number (124377780).

Almost surely, 2^725537015 is an apocalyptic number.

725537015 is a deficient number, since it is larger than the sum of its proper divisors (269485225).

725537015 is a wasteful number, since it uses less digits than its factorization.

725537015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20729641.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 725537015 is about 26935.7943079464. The cubic root of 725537015 is about 898.5726407618.

The spelling of 725537015 in words is "seven hundred twenty-five million, five hundred thirty-seven thousand, fifteen".