10531988 has 12 divisors (see below), whose sum is σ = 19066740. Its totient is φ = 5084352.

The previous prime is 10531987. The next prime is 10532003. The reversal of 10531988 is 88913501.

It can be written as a sum of positive squares in 2 ways, for example, as 2226064 + 8305924 = 1492^2 + 2882^2 .

It is a super-2 number, since 2×10531988² = 221845542464288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10531987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45281 + ... + 45512.

It is an arithmetic number, because the mean of its divisors is an integer number (1588895).

Almost surely, 2^10531988 is an apocalyptic number.

It is an amenable number.

10531988 is a deficient number, since it is larger than the sum of its proper divisors (8534752).

10531988 is a wasteful number, since it uses less digits than its factorization.

10531988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90826 (or 90824 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 10531988 is about 3245.3024512362. The cubic root of 10531988 is about 219.1980999089.

The spelling of 10531988 in words is "ten million, five hundred thirty-one thousand, nine hundred eighty-eight".