5211461636 has 6 divisors (see below), whose sum is σ = 9120057870. Its totient is φ = 2605730816.

The previous prime is 5211461627. The next prime is 5211461653. The reversal of 5211461636 is 6361641125.

It can be written as a sum of positive squares in only one way, i.e., 5211396100 + 65536 = 72190^2 + 256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5211461596 and 5211461605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651432701 + ... + 651432708.

It is an arithmetic number, because the mean of its divisors is an integer number (1520009645).

Almost surely, 2^5211461636 is an apocalyptic number.

It is an amenable number.

5211461636 is a deficient number, since it is larger than the sum of its proper divisors (3908596234).

5211461636 is a wasteful number, since it uses less digits than its factorization.

5211461636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302865413 (or 1302865411 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 5211461636 is about 72190.4539118573. The cubic root of 5211461636 is about 1733.7501634448.

The spelling of 5211461636 in words is "five billion, two hundred eleven million, four hundred sixty-one thousand, six hundred thirty-six".