725514820 has 12 divisors (see below), whose sum is σ = 1523581164. Its totient is φ = 290205920.

The previous prime is 725514817. The next prime is 725514871. The reversal of 725514820 is 28415527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 515380804 + 210134016 = 22702^2 + 14496^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18137851 + ... + 18137890.

It is an arithmetic number, because the mean of its divisors is an integer number (126965097).

Almost surely, 2^725514820 is an apocalyptic number.

It is an amenable number.

725514820 is an abundant number, since it is smaller than the sum of its proper divisors (798066344).

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

725514820 is a wasteful number, since it uses less digits than its factorization.

725514820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36275750 (or 36275748 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 725514820 is about 26935.3823065499. The cubic root of 725514820 is about 898.5634778830.

The spelling of 725514820 in words is "seven hundred twenty-five million, five hundred fourteen thousand, eight hundred twenty".