5557171220 has 48 divisors (see below), whose sum is σ = 12460694400. Its totient is φ = 2076767616.

The previous prime is 5557171189. The next prime is 5557171223. The reversal of 5557171220 is 221717555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557171223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120695 + ... + 160254.

It is an arithmetic number, because the mean of its divisors is an integer number (259597800).

Almost surely, 2^5557171220 is an apocalyptic number.

It is an amenable number.

5557171220 is an abundant number, since it is smaller than the sum of its proper divisors (6903523180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5557171220 is a wasteful number, since it uses less digits than its factorization.

5557171220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281024 (or 281022 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 5557171220 is about 74546.4366686966. The cubic root of 5557171220 is about 1771.2692886301.

Adding to 5557171220 its reverse (221717555), we get a palindrome (5778888775).

The spelling of 5557171220 in words is "five billion, five hundred fifty-seven million, one hundred seventy-one thousand, two hundred twenty".