2533521101 has 8 divisors (see below), whose sum is σ = 2691839160. Its totient is φ = 2384485824.

The previous prime is 2533521079. The next prime is 2533521103. The reversal of 2533521101 is 1011253352.

It is a happy number.

2533521101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 992880100 + 1540641001 = 31510^2 + 39251^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2533521101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533521103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252926 + ... + 262751.

It is an arithmetic number, because the mean of its divisors is an integer number (336479895).

Almost surely, 2^2533521101 is an apocalyptic number.

It is an amenable number.

2533521101 is a deficient number, since it is larger than the sum of its proper divisors (158318059).

2533521101 is an frugal number, since it uses more digits than its factorization.

2533521101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515728 (or 515694 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2533521101 is about 50334.0948165356. The cubic root of 2533521101 is about 1363.2479143296.

Adding to 2533521101 its reverse (1011253352), we get a palindrome (3544774453).

The spelling of 2533521101 in words is "two billion, five hundred thirty-three million, five hundred twenty-one thousand, one hundred one".