2533021956 has 60 divisors (see below), whose sum is σ = 6662583312. Its totient is φ = 839143152.

The previous prime is 2533021927. The next prime is 2533021957. The reversal of 2533021956 is 6591203352.

2533021956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2533021956.

It is not an unprimeable number, because it can be changed into a prime (2533021957) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28831 + ... + 76793.

Almost surely, 2^2533021956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2533021956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3331291656).

2533021956 is an abundant number, since it is smaller than the sum of its proper divisors (4129561356).

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

2533021956 is a wasteful number, since it uses less digits than its factorization.

2533021956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48142 (or 48131 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 2533021956 is about 50329.1362532678. The cubic root of 2533021956 is about 1363.1583810878.

The spelling of 2533021956 in words is "two billion, five hundred thirty-three million, twenty-one thousand, nine hundred fifty-six".