5520491900 has 162 divisors, whose sum is σ = 15318957024. Its totient is φ = 1720488000.

The previous prime is 5520491861. The next prime is 5520491903. The reversal of 5520491900 is 91940255.

It is a super-2 number, since 2×5520491900² = 60951661635931220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520491903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 588245 + ... + 597555.

Almost surely, 2^5520491900 is an apocalyptic number.

5520491900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5520491900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7659478512).

5520491900 is an abundant number, since it is smaller than the sum of its proper divisors (9798465124).

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

5520491900 is a wasteful number, since it uses less digits than its factorization.

5520491900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9361 (or 9336 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 5520491900 is about 74300.0127860016. The cubic root of 5520491900 is about 1767.3636793207.

The spelling of 5520491900 in words is "five billion, five hundred twenty million, four hundred ninety-one thousand, nine hundred".