228966377773225 has 27 divisors (see below), whose sum is σ = 284263125582693. Its totient is φ = 182950909290240.

The previous prime is 228966377773213. The next prime is 228966377773253. The reversal of 228966377773225 is 522377773669822.

The square root of 228966377773225 is 15131635.

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

228966377773225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12224736039321 + 216741641733904 = 3496389^2 + 14722148^2 .

It is not a de Polignac number, because 228966377773225 - 2³⁵ = 228932018034857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 94497059364 + ... + 94497061786.

Almost surely, 2^{228966377773225} is an apocalyptic number.

228966377773225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228966377773225 is the 15131635-th square number.

228966377773225 is the 7565818-th centered octagonal number.

It is an amenable number.

228966377773225 is a deficient number, since it is larger than the sum of its proper divisors (55296747809468).

228966377773225 is an frugal number, since it uses more digits than its factorization.

228966377773225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 3677 counting only the distinct ones).

The product of its digits is 4480842240, while the sum is 76.

The spelling of 228966377773225 in words is "two hundred twenty-eight trillion, nine hundred sixty-six billion, three hundred seventy-seven million, seven hundred seventy-three thousand, two hundred twenty-five".