253612979 has 2 divisors, whose sum is σ = 253612980. Its totient is φ = 253612978.

The previous prime is 253612951. The next prime is 253612981. The reversal of 253612979 is 979216352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253612979 - 2¹⁶ = 253547443 is a prime.

It is a Sophie Germain prime.

Together with 253612981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253617979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126806489 + 126806490.

It is an arithmetic number, because the mean of its divisors is an integer number (126806490).

Almost surely, 2^253612979 is an apocalyptic number.

253612979 is a deficient number, since it is larger than the sum of its proper divisors (1).

253612979 is an equidigital number, since it uses as much as digits as its factorization.

253612979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 253612979 is about 15925.2308931456. The cubic root of 253612979 is about 632.9807342645.

The spelling of 253612979 in words is "two hundred fifty-three million, six hundred twelve thousand, nine hundred seventy-nine".