2156552 has 32 divisors (see below), whose sum is σ = 4351320. Its totient is φ = 998400.

The previous prime is 2156537. The next prime is 2156597. The reversal of 2156552 is 2556512.

It can be written as a sum of positive squares in 4 ways, for example, as 2149156 + 7396 = 1466^2 + 86^2 .

It is a d-powerful number, because it can be written as 2³ + 1 + 5⁷ + 6⁶ + 5⁷ + 5⁹ + 2⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13658 + ... + 13814.

2^2156552 is an apocalyptic number.

It is an amenable number.

2156552 is an abundant number, since it is smaller than the sum of its proper divisors (2194768).

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

2156552 is a wasteful number, since it uses less digits than its factorization.

2156552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 277 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 2156552 is about 1468.5203437474. The cubic root of 2156552 is about 129.1972624481.

The spelling of 2156552 in words is "two million, one hundred fifty-six thousand, five hundred fifty-two".