5261123236 has 12 divisors (see below), whose sum is σ = 9238390812. Its totient is φ = 2621583008.

The previous prime is 5261123233. The next prime is 5261123249. The reversal of 5261123236 is 6323211625.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4645785600 + 615337636 = 68160^2 + 24806^2 .

It is a super-2 number, since 2×5261123236² = 55358835408758223392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5261123198 and 5261123207.

It is not an unprimeable number, because it can be changed into a prime (5261123233) 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 3 ways as a sum of consecutive naturals, for example, 2243335 + ... + 2245678.

It is an arithmetic number, because the mean of its divisors is an integer number (769865901).

Almost surely, 2^5261123236 is an apocalyptic number.

It is an amenable number.

5261123236 is a deficient number, since it is larger than the sum of its proper divisors (3977267576).

5261123236 is a wasteful number, since it uses less digits than its factorization.

5261123236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489310 (or 4489308 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 5261123236 is about 72533.6007378649. The cubic root of 5261123236 is about 1739.2399062650.

The spelling of 5261123236 in words is "five billion, two hundred sixty-one million, one hundred twenty-three thousand, two hundred thirty-six".