945863228025 has 81 divisors (see below), whose sum is σ = 1771635672079. Its totient is φ = 482356158240.

The previous prime is 945863228017. The next prime is 945863228027. The reversal of 945863228025 is 520822368549.

The square root of 945863228025 is 972555.

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

945863228025 is a `hidden beast` number, since 9 + 4 + 586 + 32 + 2 + 8 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 340510762089 + 605352465936 = 583533^2 + 778044^2 .

It is not a de Polignac number, because 945863228025 - 2³ = 945863228017 is a prime.

It is a super-2 number, since 2×945863228025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (945863228027) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 335530066 + ... + 335532884.

Almost surely, 2^945863228025 is an apocalyptic number.

945863228025 is the 972555-th square number.

945863228025 is the 486278-th centered octagonal number.

It is an amenable number.

945863228025 is a deficient number, since it is larger than the sum of its proper divisors (825772444054).

945863228025 is an equidigital number, since it uses as much as digits as its factorization.

945863228025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700 (or 2850 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 945863228025 in words is "nine hundred forty-five billion, eight hundred sixty-three million, two hundred twenty-eight thousand, twenty-five".