257323033 has 16 divisors (see below), whose sum is σ = 306823680. Its totient is φ = 213062400.

The previous prime is 257323021. The next prime is 257323039. The reversal of 257323033 is 330323752.

257323033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257323033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257322992 and 257323010.

It is not an unprimeable number, because it can be changed into a prime (257323039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16398 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (19176480).

Almost surely, 2^257323033 is an apocalyptic number.

It is an amenable number.

257323033 is a deficient number, since it is larger than the sum of its proper divisors (49500647).

257323033 is a wasteful number, since it uses less digits than its factorization.

257323033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44448.

The product of its (nonzero) digits is 11340, while the sum is 28.

The square root of 257323033 is about 16041.2915003749. The cubic root of 257323033 is about 636.0523876325.

Adding to 257323033 its reverse (330323752), we get a palindrome (587646785).

The spelling of 257323033 in words is "two hundred fifty-seven million, three hundred twenty-three thousand, thirty-three".