2533522640 has 40 divisors (see below), whose sum is σ = 6425936928. Its totient is φ = 921280640.

The previous prime is 2533522603. The next prime is 2533522661. The reversal of 2533522640 is 462253352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2533522597 and 2533522606.

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, 1438622 + ... + 1440381.

Almost surely, 2^2533522640 is an apocalyptic number.

2533522640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2533522640 is an abundant number, since it is smaller than the sum of its proper divisors (3892414288).

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

2533522640 is a wasteful number, since it uses less digits than its factorization.

2533522640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879027 (or 2879021 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 2533522640 is about 50334.1101043815. The cubic root of 2533522640 is about 1363.2481903668.

Adding to 2533522640 its reverse (462253352), we get a palindrome (2995775992).

The spelling of 2533522640 in words is "two billion, five hundred thirty-three million, five hundred twenty-two thousand, six hundred forty".