285225082251 has 16 divisors (see below), whose sum is σ = 384851537280. Its totient is φ = 187887309120.

The previous prime is 285225082249. The next prime is 285225082301. The reversal of 285225082251 is 152280522582.

It is not a de Polignac number, because 285225082251 - 2¹ = 285225082249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285225082201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1532850 + ... + 1708823.

It is an arithmetic number, because the mean of its divisors is an integer number (24053221080).

Almost surely, 2^285225082251 is an apocalyptic number.

285225082251 is a deficient number, since it is larger than the sum of its proper divisors (99626455029).

285225082251 is a wasteful number, since it uses less digits than its factorization.

285225082251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242026.

The product of its (nonzero) digits is 256000, while the sum is 42.

The spelling of 285225082251 in words is "two hundred eighty-five billion, two hundred twenty-five million, eighty-two thousand, two hundred fifty-one".