11272551 has 8 divisors (see below), whose sum is σ = 15108720. Its totient is φ = 7475712.

The previous prime is 11272523. The next prime is 11272559. The reversal of 11272551 is 15527211.

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

It is not a de Polignac number, because 11272551 - 2⁵ = 11272519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272559) 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, 9156 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (1888590).

Almost surely, 2^11272551 is an apocalyptic number.

11272551 is a deficient number, since it is larger than the sum of its proper divisors (3836169).

11272551 is a wasteful number, since it uses less digits than its factorization.

11272551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19665.

The product of its digits is 700, while the sum is 24.

The square root of 11272551 is about 3357.4619878712. The cubic root of 11272551 is about 224.2198561536.

Adding to 11272551 its reverse (15527211), we get a palindrome (26799762).

The spelling of 11272551 in words is "eleven million, two hundred seventy-two thousand, five hundred fifty-one".