2533543156 has 12 divisors (see below), whose sum is σ = 4458197380. Its totient is φ = 1259772480.

The previous prime is 2533543147. The next prime is 2533543157. The reversal of 2533543156 is 6513453352.

It can be written as a sum of positive squares in 2 ways, for example, as 56490256 + 2477052900 = 7516^2 + 49770^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533543157) 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, 1748961 + ... + 1750408.

Almost surely, 2^2533543156 is an apocalyptic number.

It is an amenable number.

2533543156 is a deficient number, since it is larger than the sum of its proper divisors (1924654224).

2533543156 is a wasteful number, since it uses less digits than its factorization.

2533543156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499554 (or 3499552 counting only the distinct ones).

The product of its digits is 162000, while the sum is 37.

The square root of 2533543156 is about 50334.3139021483. The cubic root of 2533543156 is about 1363.2518701345.

The spelling of 2533543156 in words is "two billion, five hundred thirty-three million, five hundred forty-three thousand, one hundred fifty-six".