11257755 has 8 divisors (see below), whose sum is σ = 18012432. Its totient is φ = 6004128.

The previous prime is 11257751. The next prime is 11257759. The reversal of 11257755 is 55775211.

It is an interprime number because it is at equal distance from previous prime (11257751) and next prime (11257759).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11257755 - 2² = 11257751 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11257751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375244 + ... + 375273.

It is an arithmetic number, because the mean of its divisors is an integer number (2251554).

Almost surely, 2^11257755 is an apocalyptic number.

11257755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11257755 is a deficient number, since it is larger than the sum of its proper divisors (6754677).

11257755 is an equidigital number, since it uses as much as digits as its factorization.

11257755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750525.

The product of its digits is 12250, while the sum is 33.

The square root of 11257755 is about 3355.2578142372. The cubic root of 11257755 is about 224.1217118632.

The spelling of 11257755 in words is "eleven million, two hundred fifty-seven thousand, seven hundred fifty-five".