253623739 has 2 divisors, whose sum is σ = 253623740. Its totient is φ = 253623738.

The previous prime is 253623701. The next prime is 253623779. The reversal of 253623739 is 937326352.

It is a happy number.

It is an a-pointer prime, because the next prime (253623779) can be obtained adding 253623739 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253623739 - 2²⁵ = 220069307 is a prime.

It is not a weakly prime, because it can be changed into another prime (253623779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126811869 + 126811870.

It is an arithmetic number, because the mean of its divisors is an integer number (126811870).

Almost surely, 2^253623739 is an apocalyptic number.

253623739 is a deficient number, since it is larger than the sum of its proper divisors (1).

253623739 is an equidigital number, since it uses as much as digits as its factorization.

253623739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 40.

The square root of 253623739 is about 15925.5687182593. The cubic root of 253623739 is about 632.9896859310.

The spelling of 253623739 in words is "two hundred fifty-three million, six hundred twenty-three thousand, seven hundred thirty-nine".