2639754253 has 4 divisors (see below), whose sum is σ = 2724907648. Its totient is φ = 2554600860.

The previous prime is 2639754181. The next prime is 2639754263. The reversal of 2639754253 is 3524579362.

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 2639754253 - 2¹³ = 2639746061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639754263) 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 3 ways as a sum of consecutive naturals, for example, 42576651 + ... + 42576712.

It is an arithmetic number, because the mean of its divisors is an integer number (681226912).

Almost surely, 2^2639754253 is an apocalyptic number.

It is an amenable number.

2639754253 is a deficient number, since it is larger than the sum of its proper divisors (85153395).

2639754253 is an equidigital number, since it uses as much as digits as its factorization.

2639754253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85153394.

The product of its digits is 1360800, while the sum is 46.

The square root of 2639754253 is about 51378.5388367556. The cubic root of 2639754253 is about 1382.0417604347.

The spelling of 2639754253 in words is "two billion, six hundred thirty-nine million, seven hundred fifty-four thousand, two hundred fifty-three".