11201553 has 12 divisors (see below), whose sum is σ = 17651088. Its totient is φ = 6788760.

The previous prime is 11201551. The next prime is 11201573. The reversal of 11201553 is 35510211.

11201553 is a `hidden beast` number, since 112 + 0 + 1 + 553 = 666.

It is not a de Polignac number, because 11201553 - 2¹ = 11201551 is a prime.

It is a super-2 number, since 2×11201553² = 250949579223618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56475 + ... + 56672.

It is an arithmetic number, because the mean of its divisors is an integer number (1470924).

Almost surely, 2^11201553 is an apocalyptic number.

It is an amenable number.

11201553 is a deficient number, since it is larger than the sum of its proper divisors (6449535).

11201553 is a wasteful number, since it uses less digits than its factorization.

11201553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113164 (or 113161 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 11201553 is about 3346.8721218475. The cubic root of 11201553 is about 223.7481291522.

Adding to 11201553 its reverse (35510211), we get a palindrome (46711764).

The spelling of 11201553 in words is "eleven million, two hundred one thousand, five hundred fifty-three".