2533499820 has 36 divisors (see below), whose sum is σ = 7684950000. Its totient is φ = 675599904.

The previous prime is 2533499819. The next prime is 2533499833. The reversal of 2533499820 is 289943352.

It is a happy number.

2533499820 is a `hidden beast` number, since 2 + 533 + 4 + 9 + 98 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7037320 + ... + 7037679.

Almost surely, 2^2533499820 is an apocalyptic number.

2533499820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2533499820 is an abundant number, since it is smaller than the sum of its proper divisors (5151450180).

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

2533499820 is a wasteful number, since it uses less digits than its factorization.

2533499820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14075014 (or 14075009 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 2533499820 is about 50333.8834186277. The cubic root of 2533499820 is about 1363.2440973283.

It can be divided in two parts, 253349 and 9820, that added together give a square (263169 = 513²).

The spelling of 2533499820 in words is "two billion, five hundred thirty-three million, four hundred ninety-nine thousand, eight hundred twenty".