2540220522 has 32 divisors (see below), whose sum is σ = 5831160192. Its totient is φ = 722659584.

The previous prime is 2540220521. The next prime is 2540220587. The reversal of 2540220522 is 2250220452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2540220492 and 2540220501.

It is not an unprimeable number, because it can be changed into a prime (2540220521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120003 + ... + 139574.

It is an arithmetic number, because the mean of its divisors is an integer number (182223756).

Almost surely, 2^2540220522 is an apocalyptic number.

2540220522 is an abundant number, since it is smaller than the sum of its proper divisors (3290939670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2540220522 is a wasteful number, since it uses less digits than its factorization.

2540220522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259822.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2540220522 is about 50400.6004130903. The cubic root of 2540220522 is about 1364.4484744728.

Adding to 2540220522 its reverse (2250220452), we get a palindrome (4790440974).

The spelling of 2540220522 in words is "two billion, five hundred forty million, two hundred twenty thousand, five hundred twenty-two".