253793779 has 2 divisors, whose sum is σ = 253793780. Its totient is φ = 253793778.

The previous prime is 253793777. The next prime is 253793791. The reversal of 253793779 is 977397352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253793779 - 2¹ = 253793777 is a prime.

It is a super-2 number, since 2×253793779² = 128822564518201682, which contains 22 as substring.

Together with 253793777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (253793777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126896889 + 126896890.

It is an arithmetic number, because the mean of its divisors is an integer number (126896890).

Almost surely, 2^253793779 is an apocalyptic number.

253793779 is a deficient number, since it is larger than the sum of its proper divisors (1).

253793779 is an equidigital number, since it uses as much as digits as its factorization.

253793779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2500470, while the sum is 52.

The square root of 253793779 is about 15930.9064086134. The cubic root of 253793779 is about 633.1311152803.

The spelling of 253793779 in words is "two hundred fifty-three million, seven hundred ninety-three thousand, seven hundred seventy-nine".