253878211 has 4 divisors (see below), whose sum is σ = 256343152. Its totient is φ = 251413272.

The previous prime is 253878199. The next prime is 253878223. The reversal of 253878211 is 112878352.

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

It is an interprime number because it is at equal distance from previous prime (253878199) and next prime (253878223).

It is a cyclic number.

It is not a de Polignac number, because 253878211 - 2⁷ = 253878083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253878311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232316 + ... + 1232521.

It is an arithmetic number, because the mean of its divisors is an integer number (64085788).

Almost surely, 2^253878211 is an apocalyptic number.

253878211 is a deficient number, since it is larger than the sum of its proper divisors (2464941).

253878211 is a wasteful number, since it uses less digits than its factorization.

253878211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464940.

The product of its digits is 26880, while the sum is 37.

The square root of 253878211 is about 15933.5561316362. The cubic root of 253878211 is about 633.2013174206.

The spelling of 253878211 in words is "two hundred fifty-three million, eight hundred seventy-eight thousand, two hundred eleven".