268522357 has 4 divisors (see below), whose sum is σ = 275779756. Its totient is φ = 261264960.

The previous prime is 268522349. The next prime is 268522363. The reversal of 268522357 is 753225862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753225862 = 2 ⋅376612931.

It can be written as a sum of positive squares in 2 ways, for example, as 96020401 + 172501956 = 9799^2 + 13134^2 .

It is a cyclic number.

It is not a de Polignac number, because 268522357 - 2³ = 268522349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268523357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3628644 + ... + 3628717.

It is an arithmetic number, because the mean of its divisors is an integer number (68944939).

Almost surely, 2^268522357 is an apocalyptic number.

It is an amenable number.

268522357 is a deficient number, since it is larger than the sum of its proper divisors (7257399).

268522357 is an equidigital number, since it uses as much as digits as its factorization.

268522357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7257398.

The product of its digits is 201600, while the sum is 40.

The square root of 268522357 is about 16386.6517934568. The cubic root of 268522357 is about 645.1491808853.

The spelling of 268522357 in words is "two hundred sixty-eight million, five hundred twenty-two thousand, three hundred fifty-seven".