11261553 has 8 divisors (see below), whose sum is σ = 15153600. Its totient is φ = 7438608.

The previous prime is 11261543. The next prime is 11261563. The reversal of 11261553 is 35516211.

11261553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11261543) and next prime (11261563).

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

It is not a de Polignac number, because 11261553 - 2⁶ = 11261489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11261543) 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, 16893 + ... + 17546.

It is an arithmetic number, because the mean of its divisors is an integer number (1894200).

Almost surely, 2^11261553 is an apocalyptic number.

It is an amenable number.

11261553 is a deficient number, since it is larger than the sum of its proper divisors (3892047).

11261553 is a wasteful number, since it uses less digits than its factorization.

11261553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34551.

The product of its digits is 900, while the sum is 24.

The square root of 11261553 is about 3355.8237438817. The cubic root of 11261553 is about 224.1469128189.

Adding to 11261553 its reverse (35516211), we get a palindrome (46777764).

The spelling of 11261553 in words is "eleven million, two hundred sixty-one thousand, five hundred fifty-three".