2538309633 has 4 divisors (see below), whose sum is σ = 3384412848. Its totient is φ = 1692206420.

The previous prime is 2538309629. The next prime is 2538309643. The reversal of 2538309633 is 3369038352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2538309633 - 2² = 2538309629 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2538309643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423051603 + ... + 423051608.

It is an arithmetic number, because the mean of its divisors is an integer number (846103212).

Almost surely, 2^2538309633 is an apocalyptic number.

It is an amenable number.

2538309633 is a deficient number, since it is larger than the sum of its proper divisors (846103215).

2538309633 is an equidigital number, since it uses as much as digits as its factorization.

2538309633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846103214.

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 2538309633 is about 50381.6398403228. The cubic root of 2538309633 is about 1364.1062517383.

The spelling of 2538309633 in words is "two billion, five hundred thirty-eight million, three hundred nine thousand, six hundred thirty-three".