5550181631 has 4 divisors (see below), whose sum is σ = 5550482232. Its totient is φ = 5549881032.

The previous prime is 5550181621. The next prime is 5550181639. The reversal of 5550181631 is 1361810555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5550181631 is a prime.

It is a super-2 number, since 2×5550181631² = 61609032274179640322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5550181591 and 5550181600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550181639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120656 + ... + 160181.

It is an arithmetic number, because the mean of its divisors is an integer number (1387620558).

Almost surely, 2^5550181631 is an apocalyptic number.

5550181631 is a deficient number, since it is larger than the sum of its proper divisors (300601).

5550181631 is a wasteful number, since it uses less digits than its factorization.

5550181631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300600.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 5550181631 is about 74499.5411462379. The cubic root of 5550181631 is about 1770.5263663759.

The spelling of 5550181631 in words is "five billion, five hundred fifty million, one hundred eighty-one thousand, six hundred thirty-one".