2533938621 has 32 divisors (see below), whose sum is σ = 3672200448. Its totient is φ = 1547919360.

The previous prime is 2533938619. The next prime is 2533938637. The reversal of 2533938621 is 1268393352.

It is not a de Polignac number, because 2533938621 - 2¹ = 2533938619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2533938611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1351941 + ... + 1353813.

It is an arithmetic number, because the mean of its divisors is an integer number (114756264).

Almost surely, 2^2533938621 is an apocalyptic number.

It is an amenable number.

2533938621 is a deficient number, since it is larger than the sum of its proper divisors (1138261827).

2533938621 is a wasteful number, since it uses less digits than its factorization.

2533938621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its digits is 233280, while the sum is 42.

The square root of 2533938621 is about 50338.2421325974. The cubic root of 2533938621 is about 1363.3227972011.

The spelling of 2533938621 in words is "two billion, five hundred thirty-three million, nine hundred thirty-eight thousand, six hundred twenty-one".