5153551636 has 6 divisors (see below), whose sum is σ = 9018715370. Its totient is φ = 2576775816.

The previous prime is 5153551567. The next prime is 5153551657. The reversal of 5153551636 is 6361553515.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2717536900 + 2436014736 = 52130^2 + 49356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644193951 + ... + 644193958.

Almost surely, 2^5153551636 is an apocalyptic number.

It is an amenable number.

5153551636 is a deficient number, since it is larger than the sum of its proper divisors (3865163734).

5153551636 is a wasteful number, since it uses less digits than its factorization.

5153551636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288387913 (or 1288387911 counting only the distinct ones).

The product of its digits is 202500, while the sum is 40.

The square root of 5153551636 is about 71788.2416277206. The cubic root of 5153551636 is about 1727.3043918913.

The spelling of 5153551636 in words is "five billion, one hundred fifty-three million, five hundred fifty-one thousand, six hundred thirty-six".