11801552 has 30 divisors (see below), whose sum is σ = 26600418. Its totient is φ = 5057472.

The previous prime is 11801551. The next prime is 11801561. The reversal of 11801552 is 25510811.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 132496 = 3416^2 + 364^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6743 + ... + 8310.

Almost surely, 2^11801552 is an apocalyptic number.

It is an amenable number.

11801552 is an abundant number, since it is smaller than the sum of its proper divisors (14798866).

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

11801552 is a wasteful number, since it uses less digits than its factorization.

11801552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15075 (or 15062 counting only the distinct ones).

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

The square root of 11801552 is about 3435.3387023698. The cubic root of 11801552 is about 227.6737922518.

The spelling of 11801552 in words is "eleven million, eight hundred one thousand, five hundred fifty-two".