385392253 has 2 divisors, whose sum is σ = 385392254. Its totient is φ = 385392252.

The previous prime is 385392239. The next prime is 385392269. The reversal of 385392253 is 352293583.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330439684 + 54952569 = 18178^2 + 7413^2 .

It is a cyclic number.

It is not a de Polignac number, because 385392253 - 2⁵ = 385392221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385399253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192696126 + 192696127.

It is an arithmetic number, because the mean of its divisors is an integer number (192696127).

Almost surely, 2^385392253 is an apocalyptic number.

It is an amenable number.

385392253 is a deficient number, since it is larger than the sum of its proper divisors (1).

385392253 is an equidigital number, since it uses as much as digits as its factorization.

385392253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 385392253 is about 19631.4098576745. The cubic root of 385392253 is about 727.7256122136.

The spelling of 385392253 in words is "three hundred eighty-five million, three hundred ninety-two thousand, two hundred fifty-three".