253120823 has 2 divisors, whose sum is σ = 253120824. Its totient is φ = 253120822.

The previous prime is 253120783. The next prime is 253120843. The reversal of 253120823 is 328021352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253120823 - 2⁶ = 253120759 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 253120792 and 253120801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253120843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126560411 + 126560412.

It is an arithmetic number, because the mean of its divisors is an integer number (126560412).

Almost surely, 2^253120823 is an apocalyptic number.

253120823 is a deficient number, since it is larger than the sum of its proper divisors (1).

253120823 is an equidigital number, since it uses as much as digits as its factorization.

253120823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 253120823 is about 15909.7713057102. The cubic root of 253120823 is about 632.5710194330.

The spelling of 253120823 in words is "two hundred fifty-three million, one hundred twenty thousand, eight hundred twenty-three".