11551028 has 12 divisors (see below), whose sum is σ = 20247780. Its totient is φ = 5765952.

The previous prime is 11551013. The next prime is 11551081. The reversal of 11551028 is 82015511.

It can be written as a sum of positive squares in 2 ways, for example, as 1387684 + 10163344 = 1178^2 + 3188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11550994 and 11551012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 4872.

It is an arithmetic number, because the mean of its divisors is an integer number (1687315).

Almost surely, 2^11551028 is an apocalyptic number.

It is an amenable number.

11551028 is a deficient number, since it is larger than the sum of its proper divisors (8696752).

11551028 is a wasteful number, since it uses less digits than its factorization.

11551028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786 (or 4784 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 11551028 is about 3398.6803321289. The cubic root of 11551028 is about 226.0512322832.

Adding to 11551028 its reverse (82015511), we get a palindrome (93566539).

The spelling of 11551028 in words is "eleven million, five hundred fifty-one thousand, twenty-eight".