249256253 has 2 divisors, whose sum is σ = 249256254. Its totient is φ = 249256252.

The previous prime is 249256229. The next prime is 249256291. The reversal of 249256253 is 352652942.

It is an a-pointer prime, because the next prime (249256291) can be obtained adding 249256253 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175244644 + 74011609 = 13238^2 + 8603^2 .

It is a cyclic number.

It is not a de Polignac number, because 249256253 - 2¹⁰ = 249255229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249256453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124628126 + 124628127.

It is an arithmetic number, because the mean of its divisors is an integer number (124628127).

Almost surely, 2^249256253 is an apocalyptic number.

It is an amenable number.

249256253 is a deficient number, since it is larger than the sum of its proper divisors (1).

249256253 is an equidigital number, since it uses as much as digits as its factorization.

249256253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 249256253 is about 15787.8514371019. The cubic root of 249256253 is about 629.3351960875.

The spelling of 249256253 in words is "two hundred forty-nine million, two hundred fifty-six thousand, two hundred fifty-three".