2533918788 has 60 divisors (see below), whose sum is σ = 6686163792. Its totient is φ = 836734320.

The previous prime is 2533918781. The next prime is 2533918789. The reversal of 2533918788 is 8878193352.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2533918781) 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, 1878 + ... + 71213.

Almost surely, 2^2533918788 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 2533918788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3343081896).

2533918788 is an abundant number, since it is smaller than the sum of its proper divisors (4152245004).

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

2533918788 is a wasteful number, since it uses less digits than its factorization.

2533918788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73214 (or 73203 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 2533918788 is about 50338.0451348679. The cubic root of 2533918788 is about 1363.3192403073.

The spelling of 2533918788 in words is "two billion, five hundred thirty-three million, nine hundred eighteen thousand, seven hundred eighty-eight".