255776245 has 12 divisors (see below), whose sum is σ = 314699364. Its totient is φ = 199451520.

The previous prime is 255776221. The next prime is 255776351. The reversal of 255776245 is 542677552.

It can be written as a sum of positive squares in 6 ways, for example, as 163481796 + 92294449 = 12786^2 + 9607^2 .

It is not a de Polignac number, because 255776245 - 2¹³ = 255768053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228427 + ... + 229543.

It is an arithmetic number, because the mean of its divisors is an integer number (26224947).

Almost surely, 2^255776245 is an apocalyptic number.

It is an amenable number.

255776245 is a deficient number, since it is larger than the sum of its proper divisors (58923119).

255776245 is an frugal number, since it uses more digits than its factorization.

255776245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 1163 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

The square root of 255776245 is about 15993.0061276797. The cubic root of 255776245 is about 634.7753726330.

The spelling of 255776245 in words is "two hundred fifty-five million, seven hundred seventy-six thousand, two hundred forty-five".