320056090225 has 9 divisors (see below), whose sum is σ = 396873059467. Its totient is φ = 256042609240.

The previous prime is 320056090183. The next prime is 320056090243. The reversal of 320056090225 is 522090650023.

It is a happy number.

The square root of 320056090225 is 565735.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 115220192481 + 204835897744 = 339441^2 + 452588^2 .

It is not a de Polignac number, because 320056090225 - 2⁷ = 320056090097 is a prime.

It is a super-2 number, since 2×320056090225² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2772102 + ... + 2885248.

Almost surely, 2^320056090225 is an apocalyptic number.

320056090225 is the 565735-th square number.

320056090225 is the 282868-th centered octagonal number.

It is an amenable number.

320056090225 is a deficient number, since it is larger than the sum of its proper divisors (76816969242).

320056090225 is an frugal number, since it uses more digits than its factorization.

320056090225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226304 (or 113152 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 320056090225 in words is "three hundred twenty billion, fifty-six million, ninety thousand, two hundred twenty-five".