257350113 has 6 divisors (see below), whose sum is σ = 371727954. Its totient is φ = 171566736.

The previous prime is 257350109. The next prime is 257350123. The reversal of 257350113 is 311053752.

It can be written as a sum of positive squares in only one way, i.e., 139996224 + 117353889 = 11832^2 + 10833^2 .

It is not a de Polignac number, because 257350113 - 2² = 257350109 is a prime.

It is a super-2 number, since 2×257350113² = 132458161322225538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257350103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14297220 + ... + 14297237.

It is an arithmetic number, because the mean of its divisors is an integer number (61954659).

Almost surely, 2^257350113 is an apocalyptic number.

It is an amenable number.

257350113 is a deficient number, since it is larger than the sum of its proper divisors (114377841).

257350113 is a wasteful number, since it uses less digits than its factorization.

257350113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28594463 (or 28594460 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 257350113 is about 16042.1355498574. The cubic root of 257350113 is about 636.0746990107.

The spelling of 257350113 in words is "two hundred fifty-seven million, three hundred fifty thousand, one hundred thirteen".