5531220377 has 4 divisors (see below), whose sum is σ = 5532940836. Its totient is φ = 5529499920.

The previous prime is 5531220361. The next prime is 5531220403. The reversal of 5531220377 is 7730221355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3806396416 + 1724823961 = 61696^2 + 41531^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531220377 - 2⁴ = 5531220361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5531220307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855398 + ... + 861839.

It is an arithmetic number, because the mean of its divisors is an integer number (1383235209).

Almost surely, 2^5531220377 is an apocalyptic number.

It is an amenable number.

5531220377 is a deficient number, since it is larger than the sum of its proper divisors (1720459).

5531220377 is a wasteful number, since it uses less digits than its factorization.

5531220377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720458.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 5531220377 is about 74372.1747497006. The cubic root of 5531220377 is about 1768.5078316421.

The spelling of 5531220377 in words is "five billion, five hundred thirty-one million, two hundred twenty thousand, three hundred seventy-seven".