2533557648 has 20 divisors (see below), whose sum is σ = 6545024048. Its totient is φ = 844519200.

The previous prime is 2533557619. The next prime is 2533557661. The reversal of 2533557648 is 8467553352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 52782451 = 2533557648 / (2 + 5 + 3 + 3 + 5 + 5 + 7 + 6 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 2533557597 and 2533557606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26391178 + ... + 26391273.

Almost surely, 2^2533557648 is an apocalyptic number.

It is an amenable number.

2533557648 is an abundant number, since it is smaller than the sum of its proper divisors (4011466400).

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

2533557648 is a wasteful number, since it uses less digits than its factorization.

2533557648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52782462 (or 52782456 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 48.

The square root of 2533557648 is about 50334.4578594028. The cubic root of 2533557648 is about 1363.2544694203.

It can be divided in two parts, 253355 and 7648, that added together give a triangular number (261003 = T₇₂₂).

The spelling of 2533557648 in words is "two billion, five hundred thirty-three million, five hundred fifty-seven thousand, six hundred forty-eight".