2533649297 has 4 divisors (see below), whose sum is σ = 2666999280. Its totient is φ = 2400299316.

The previous prime is 2533649273. The next prime is 2533649303. The reversal of 2533649297 is 7929463352.

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 2533649297 - 2⁶ = 2533649233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2533649207) 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, 66674963 + ... + 66675000.

It is an arithmetic number, because the mean of its divisors is an integer number (666749820).

Almost surely, 2^2533649297 is an apocalyptic number.

It is an amenable number.

2533649297 is a deficient number, since it is larger than the sum of its proper divisors (133349983).

2533649297 is a wasteful number, since it uses less digits than its factorization.

2533649297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133349982.

The product of its digits is 2449440, while the sum is 50.

The square root of 2533649297 is about 50335.3682513598. The cubic root of 2533649297 is about 1363.2709073599.

The spelling of 2533649297 in words is "two billion, five hundred thirty-three million, six hundred forty-nine thousand, two hundred ninety-seven".