385908253 has 2 divisors, whose sum is σ = 385908254. Its totient is φ = 385908252.

The previous prime is 385908247. The next prime is 385908293. The reversal of 385908253 is 352809583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278122329 + 107785924 = 16677^2 + 10382^2 .

It is a cyclic number.

It is not a de Polignac number, because 385908253 - 2²⁵ = 352353821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385908223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192954126 + 192954127.

It is an arithmetic number, because the mean of its divisors is an integer number (192954127).

Almost surely, 2^385908253 is an apocalyptic number.

It is an amenable number.

385908253 is a deficient number, since it is larger than the sum of its proper divisors (1).

385908253 is an equidigital number, since it uses as much as digits as its factorization.

385908253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 385908253 is about 19644.5476659556. The cubic root of 385908253 is about 728.0502502497.

The spelling of 385908253 in words is "three hundred eighty-five million, nine hundred eight thousand, two hundred fifty-three".