11875572 has 30 divisors (see below), whose sum is σ = 31045938. Its totient is φ = 3958416.

The previous prime is 11875561. The next prime is 11875603. The reversal of 11875572 is 27557811.

11875572 is a `hidden beast` number, since 1 + 1 + 87 + 5 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 2178576 = 3114^2 + 1476^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18003 + ... + 18650.

Almost surely, 2^11875572 is an apocalyptic number.

11875572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11875572 is an abundant number, since it is smaller than the sum of its proper divisors (19170366).

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

11875572 is a wasteful number, since it uses less digits than its factorization.

11875572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36669 (or 36658 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 11875572 is about 3446.0951815062. The cubic root of 11875572 is about 228.1487948408.

The spelling of 11875572 in words is "eleven million, eight hundred seventy-five thousand, five hundred seventy-two".