725641120 has 48 divisors (see below), whose sum is σ = 1715952168. Its totient is φ = 289981440.

The previous prime is 725641117. The next prime is 725641123. The reversal of 725641120 is 21146527.

It is an interprime number because it is at equal distance from previous prime (725641117) and next prime (725641123).

It can be written as a sum of positive squares in 4 ways, for example, as 514926864 + 210714256 = 22692^2 + 14516^2 .

It is not an unprimeable number, because it can be changed into a prime (725641123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296542 + ... + 298978.

Almost surely, 2^725641120 is an apocalyptic number.

It is an amenable number.

725641120 is an abundant number, since it is smaller than the sum of its proper divisors (990311048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725641120 is a wasteful number, since it uses less digits than its factorization.

725641120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 725641120 is about 26937.7267043825. The cubic root of 725641120 is about 898.6156164837.

Adding to 725641120 its reverse (21146527), we get a palindrome (746787647).

The spelling of 725641120 in words is "seven hundred twenty-five million, six hundred forty-one thousand, one hundred twenty".