11551272 has 16 divisors (see below), whose sum is σ = 28878240. Its totient is φ = 3850416.

The previous prime is 11551261. The next prime is 11551273. The reversal of 11551272 is 27215511.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 481303 = 11551272 / (1 + 1 + 5 + 5 + 1 + 2 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (11551273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240628 + ... + 240675.

It is an arithmetic number, because the mean of its divisors is an integer number (1804890).

Almost surely, 2^11551272 is an apocalyptic number.

11551272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11551272 is an abundant number, since it is smaller than the sum of its proper divisors (17326968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11551272 is a wasteful number, since it uses less digits than its factorization.

11551272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481312 (or 481308 counting only the distinct ones).

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

The square root of 11551272 is about 3398.7162282250. The cubic root of 11551272 is about 226.0528239485.

Adding to 11551272 its reverse (27215511), we get a palindrome (38766783).

The spelling of 11551272 in words is "eleven million, five hundred fifty-one thousand, two hundred seventy-two".