2540111233522 has 4 divisors (see below), whose sum is σ = 3810166850286. Its totient is φ = 1270055616760.

The previous prime is 2540111233511. The next prime is 2540111233559. The reversal of 2540111233522 is 2253321110452.

It is a happy number.

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., 1873747584801 + 666363648721 = 1368849^2 + 816311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635027808379 + ... + 635027808382.

Almost surely, 2^{2540111233522} is an apocalyptic number.

2540111233522 is a deficient number, since it is larger than the sum of its proper divisors (1270055616764).

2540111233522 is a wasteful number, since it uses less digits than its factorization.

2540111233522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270055616763.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2540111233522 its reverse (2253321110452), we get a palindrome (4793432343974).

The spelling of 2540111233522 in words is "two trillion, five hundred forty billion, one hundred eleven million, two hundred thirty-three thousand, five hundred twenty-two".