11411551 has 4 divisors (see below), whose sum is σ = 11423632. Its totient is φ = 11399472.

The previous prime is 11411501. The next prime is 11411563. The reversal of 11411551 is 15511411.

11411551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11411551 - 2²¹ = 9314399 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 (11411501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4491 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (2855908).

Almost surely, 2^11411551 is an apocalyptic number.

11411551 is a deficient number, since it is larger than the sum of its proper divisors (12081).

11411551 is a wasteful number, since it uses less digits than its factorization.

11411551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12080.

The product of its digits is 100, while the sum is 19.

The square root of 11411551 is about 3378.0987256148. The cubic root of 11411551 is about 225.1377000725.

Adding to 11411551 its reverse (15511411), we get a palindrome (26922962).

The spelling of 11411551 in words is "eleven million, four hundred eleven thousand, five hundred fifty-one".