2521275726 has 16 divisors (see below), whose sum is σ = 5092478928. Its totient is φ = 832104000.

The previous prime is 2521275707. The next prime is 2521275739. The reversal of 2521275726 is 6275721252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079655 + ... + 2080866.

It is an arithmetic number, because the mean of its divisors is an integer number (318279933).

Almost surely, 2^2521275726 is an apocalyptic number.

2521275726 is an abundant number, since it is smaller than the sum of its proper divisors (2571203202).

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

2521275726 is a wasteful number, since it uses less digits than its factorization.

2521275726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160627.

The product of its digits is 117600, while the sum is 39.

The square root of 2521275726 is about 50212.3065194181. The cubic root of 2521275726 is about 1361.0480182405.

Adding to 2521275726 its reverse (6275721252), we get a palindrome (8796996978).

The spelling of 2521275726 in words is "two billion, five hundred twenty-one million, two hundred seventy-five thousand, seven hundred twenty-six".