55352020 has 24 divisors (see below), whose sum is σ = 116379144. Its totient is φ = 22114176.

The previous prime is 55351987. The next prime is 55352027. The reversal of 55352020 is 2025355.

55352020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 976144 + 54375876 = 988^2 + 7374^2 .

It is a super-2 number, since 2×55352020² = 6127692236160800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55351982 and 55352000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55352027) 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 7 ways as a sum of consecutive naturals, for example, 31074 + ... + 32806.

It is an arithmetic number, because the mean of its divisors is an integer number (4849131).

Almost surely, 2^55352020 is an apocalyptic number.

It is an amenable number.

55352020 is an abundant number, since it is smaller than the sum of its proper divisors (61027124).

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

55352020 is a wasteful number, since it uses less digits than its factorization.

55352020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 55352020 is about 7439.8938164466. The cubic root of 55352020 is about 381.1048638636.

Adding to 55352020 its reverse (2025355), we get a palindrome (57377375).

The spelling of 55352020 in words is "fifty-five million, three hundred fifty-two thousand, twenty".