2155532 has 12 divisors (see below), whose sum is σ = 3994200. Its totient is φ = 1014336.

The previous prime is 2155519. The next prime is 2155579. The reversal of 2155532 is 2355512.

It is a junction number, because it is equal to n+sod(n) for n = 2155498 and 2155507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15782 + ... + 15917.

It is an arithmetic number, because the mean of its divisors is an integer number (332850).

2^2155532 is an apocalyptic number.

It is an amenable number.

2155532 is a deficient number, since it is larger than the sum of its proper divisors (1838668).

2155532 is a wasteful number, since it uses less digits than its factorization.

2155532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31720 (or 31718 counting only the distinct ones).

The product of its digits is 1500, while the sum is 23.

The square root of 2155532 is about 1468.1730143277. The cubic root of 2155532 is about 129.1768901146.

The spelling of 2155532 in words is "two million, one hundred fifty-five thousand, five hundred thirty-two".