2523220726 has 32 divisors (see below), whose sum is σ = 4136932800. Its totient is φ = 1147271040.

The previous prime is 2523220723. The next prime is 2523220741. The reversal of 2523220726 is 6270223252.

It is a happy number.

It is a super-3 number, since 3×2523220726³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523220723) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 510495 + ... + 515413.

It is an arithmetic number, because the mean of its divisors is an integer number (129279150).

Almost surely, 2^2523220726 is an apocalyptic number.

2523220726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2523220726 is a deficient number, since it is larger than the sum of its proper divisors (1613712074).

2523220726 is a wasteful number, since it uses less digits than its factorization.

2523220726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 2523220726 is about 50231.6705475739. The cubic root of 2523220726 is about 1361.3979149132.

Adding to 2523220726 its reverse (6270223252), we get a palindrome (8793443978).

The spelling of 2523220726 in words is "two billion, five hundred twenty-three million, two hundred twenty thousand, seven hundred twenty-six".