285100253 has 2 divisors, whose sum is σ = 285100254. Its totient is φ = 285100252.

The previous prime is 285100241. The next prime is 285100267. The reversal of 285100253 is 352001582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252587449 + 32512804 = 15893^2 + 5702^2 .

It is a cyclic number.

It is not a de Polignac number, because 285100253 - 2¹² = 285096157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285103253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142550126 + 142550127.

It is an arithmetic number, because the mean of its divisors is an integer number (142550127).

Almost surely, 2^285100253 is an apocalyptic number.

It is an amenable number.

285100253 is a deficient number, since it is larger than the sum of its proper divisors (1).

285100253 is an equidigital number, since it uses as much as digits as its factorization.

285100253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 285100253 is about 16884.9119926637. The cubic root of 285100253 is about 658.1615911494.

The spelling of 285100253 in words is "two hundred eighty-five million, one hundred thousand, two hundred fifty-three".