253205255 has 4 divisors (see below), whose sum is σ = 303846312. Its totient is φ = 202564200.

The previous prime is 253205243. The next prime is 253205257. The reversal of 253205255 is 552502352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 253205255 - 2¹² = 253201159 is a prime.

It is a super-2 number, since 2×253205255² = 128225802319230050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253205257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25320521 + ... + 25320530.

It is an arithmetic number, because the mean of its divisors is an integer number (75961578).

Almost surely, 2^253205255 is an apocalyptic number.

253205255 is a deficient number, since it is larger than the sum of its proper divisors (50641057).

253205255 is an equidigital number, since it uses as much as digits as its factorization.

253205255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50641056.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 253205255 is about 15912.4245481322. The cubic root of 253205255 is about 632.6413459254.

The spelling of 253205255 in words is "two hundred fifty-three million, two hundred five thousand, two hundred fifty-five".