2533620740 has 72 divisors (see below), whose sum is σ = 6417698112. Its totient is φ = 822934080.

The previous prime is 2533620737. The next prime is 2533620763. The reversal of 2533620740 is 470263352.

It is a junction number, because it is equal to n+sod(n) for n = 2533620697 and 2533620706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25475 + ... + 75605.

It is an arithmetic number, because the mean of its divisors is an integer number (89134696).

Almost surely, 2^2533620740 is an apocalyptic number.

2533620740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2533620740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3208849056).

2533620740 is an abundant number, since it is smaller than the sum of its proper divisors (3884077372).

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

2533620740 is a wasteful number, since it uses less digits than its factorization.

2533620740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50185 (or 50164 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 2533620740 is about 50335.0845832209. The cubic root of 2533620740 is about 1363.2657854890.

The spelling of 2533620740 in words is "two billion, five hundred thirty-three million, six hundred twenty thousand, seven hundred forty".