11253550 has 96 divisors (see below), whose sum is σ = 27141120. Its totient is φ = 3369600.

The previous prime is 11253503. The next prime is 11253553. The reversal of 11253550 is 5535211.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11253553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142411 + ... + 142489.

It is an arithmetic number, because the mean of its divisors is an integer number (282720).

Almost surely, 2^11253550 is an apocalyptic number.

11253550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11253550 is an abundant number, since it is smaller than the sum of its proper divisors (15887570).

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

11253550 is a wasteful number, since it uses less digits than its factorization.

11253550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 11253550 is about 3354.6311272627. The cubic root of 11253550 is about 224.0938037186.

Adding to 11253550 its reverse (5535211), we get a palindrome (16788761).

The spelling of 11253550 in words is "eleven million, two hundred fifty-three thousand, five hundred fifty".