55330120 has 32 divisors (see below), whose sum is σ = 124944120. Its totient is φ = 22051840.

The previous prime is 55330103. The next prime is 55330127. The reversal of 55330120 is 2103355.

It can be written as a sum of positive squares in 4 ways, for example, as 53787556 + 1542564 = 7334^2 + 1242^2 .

It is a super-2 number, since 2×55330120² = 6122844358428800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55330127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9360 + ... + 14080.

Almost surely, 2^55330120 is an apocalyptic number.

It is an amenable number.

55330120 is an abundant number, since it is smaller than the sum of its proper divisors (69614000).

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

55330120 is a wasteful number, since it uses less digits than its factorization.

55330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55330120 is about 7438.4218756400. The cubic root of 55330120 is about 381.0545959151.

Adding to 55330120 its reverse (2103355), we get a palindrome (57433475).

The spelling of 55330120 in words is "fifty-five million, three hundred thirty thousand, one hundred twenty".