11320554 has 32 divisors (see below), whose sum is σ = 27002880. Its totient is φ = 3093552.

The previous prime is 11320553. The next prime is 11320571. The reversal of 11320554 is 45502311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11320554.

It is not an unprimeable number, because it can be changed into a prime (11320553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4894 + ... + 6825.

It is an arithmetic number, because the mean of its divisors is an integer number (843840).

Almost surely, 2^11320554 is an apocalyptic number.

11320554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11320554 is an abundant number, since it is smaller than the sum of its proper divisors (15682326).

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

11320554 is a wasteful number, since it uses less digits than its factorization.

11320554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11754.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 11320554 is about 3364.6030969492. The cubic root of 11320554 is about 224.5376778477.

Adding to 11320554 its reverse (45502311), we get a palindrome (56822865).

The spelling of 11320554 in words is "eleven million, three hundred twenty thousand, five hundred fifty-four".