2525221011 has 16 divisors (see below), whose sum is σ = 3550000640. Its totient is φ = 1592252640.

The previous prime is 2525221009. The next prime is 2525221019. The reversal of 2525221011 is 1101225252.

It is not a de Polignac number, because 2525221011 - 2¹ = 2525221009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525221019) 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, 1195 + ... + 71076.

It is an arithmetic number, because the mean of its divisors is an integer number (221875040).

Almost surely, 2^2525221011 is an apocalyptic number.

2525221011 is a deficient number, since it is larger than the sum of its proper divisors (1024779629).

2525221011 is a wasteful number, since it uses less digits than its factorization.

2525221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72906.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2525221011 is about 50251.5771991288. The cubic root of 2525221011 is about 1361.7575696084.

Adding to 2525221011 its reverse (1101225252), we get a palindrome (3626446263).

The spelling of 2525221011 in words is "two billion, five hundred twenty-five million, two hundred twenty-one thousand, eleven".