724151825 has 6 divisors (see below), whose sum is σ = 897948294. Its totient is φ = 579321440.

The previous prime is 724151821. The next prime is 724151833. The reversal of 724151825 is 528151427.

It can be written as a sum of positive squares in 3 ways, for example, as 203946961 + 520204864 = 14281^2 + 22808^2 .

It is not a de Polignac number, because 724151825 - 2² = 724151821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724151821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14483012 + ... + 14483061.

It is an arithmetic number, because the mean of its divisors is an integer number (149658049).

Almost surely, 2^724151825 is an apocalyptic number.

It is an amenable number.

724151825 is a deficient number, since it is larger than the sum of its proper divisors (173796469).

724151825 is a wasteful number, since it uses less digits than its factorization.

724151825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28966083 (or 28966078 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 724151825 is about 26910.0692120998. The cubic root of 724151825 is about 898.0004269983. Note that the first 3 decimals are identical.

The spelling of 724151825 in words is "seven hundred twenty-four million, one hundred fifty-one thousand, eight hundred twenty-five".