11355257 has 6 divisors (see below), whose sum is σ = 11491998. Its totient is φ = 11219264.

The previous prime is 11355241. The next prime is 11355259. The reversal of 11355257 is 75255311.

It is a happy number.

11355257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2421136 + 8934121 = 1556^2 + 2989^2 .

It is not a de Polignac number, because 11355257 - 2⁴ = 11355241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11355259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35663 + ... + 35979.

It is an arithmetic number, because the mean of its divisors is an integer number (1915333).

Almost surely, 2^11355257 is an apocalyptic number.

It is an amenable number.

11355257 is a deficient number, since it is larger than the sum of its proper divisors (136741).

11355257 is an frugal number, since it uses more digits than its factorization.

11355257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 430 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 11355257 is about 3369.7562226369. The cubic root of 11355257 is about 224.7668828361.

It can be divided in two parts, 1135 and 5257, that multiplied together give a palindrome (5966695).

The spelling of 11355257 in words is "eleven million, three hundred fifty-five thousand, two hundred fifty-seven".