2539271497 has 4 divisors (see below), whose sum is σ = 2902024576. Its totient is φ = 2176518420.

The previous prime is 2539271479. The next prime is 2539271533. The reversal of 2539271497 is 7941729352.

It is a happy number.

2539271497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2539271497 - 2²³ = 2530882889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2539271497.

It is not an unprimeable number, because it can be changed into a prime (2539271197) 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, 181376529 + ... + 181376542.

It is an arithmetic number, because the mean of its divisors is an integer number (725506144).

Almost surely, 2^2539271497 is an apocalyptic number.

It is an amenable number.

2539271497 is a deficient number, since it is larger than the sum of its proper divisors (362753079).

2539271497 is an equidigital number, since it uses as much as digits as its factorization.

2539271497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362753078.

The product of its digits is 952560, while the sum is 49.

The square root of 2539271497 is about 50391.1847151860. The cubic root of 2539271497 is about 1364.2785342395.

The spelling of 2539271497 in words is "two billion, five hundred thirty-nine million, two hundred seventy-one thousand, four hundred ninety-seven".