2539527794 has 4 divisors (see below), whose sum is σ = 3809291694. Its totient is φ = 1269763896.

The previous prime is 2539527743. The next prime is 2539527797. The reversal of 2539527794 is 4977259352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1856489569 + 683038225 = 43087^2 + 26135^2 .

It is not an unprimeable number, because it can be changed into a prime (2539527797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634881947 + ... + 634881950.

Almost surely, 2^2539527794 is an apocalyptic number.

2539527794 is a deficient number, since it is larger than the sum of its proper divisors (1269763900).

2539527794 is a wasteful number, since it uses less digits than its factorization.

2539527794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269763899.

The product of its digits is 4762800, while the sum is 53.

The square root of 2539527794 is about 50393.7277247873. The cubic root of 2539527794 is about 1364.3244330643.

The spelling of 2539527794 in words is "two billion, five hundred thirty-nine million, five hundred twenty-seven thousand, seven hundred ninety-four".