722020725 has 36 divisors (see below), whose sum is σ = 1301219296. Its totient is φ = 382695840.

The previous prime is 722020709. The next prime is 722020751. The reversal of 722020725 is 527020227.

It is a happy number.

It is not a de Polignac number, because 722020725 - 2⁴ = 722020709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26832 + ... + 46518.

Almost surely, 2^722020725 is an apocalyptic number.

722020725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

722020725 is a deficient number, since it is larger than the sum of its proper divisors (579198571).

722020725 is a wasteful number, since it uses less digits than its factorization.

722020725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19866 (or 19858 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 722020725 is about 26870.4433346382. The cubic root of 722020725 is about 897.1186556084.

The spelling of 722020725 in words is "seven hundred twenty-two million, twenty thousand, seven hundred twenty-five".