55535020 has 12 divisors (see below), whose sum is σ = 116623584. Its totient is φ = 22214000.

The previous prime is 55535017. The next prime is 55535023. The reversal of 55535020 is 2053555.

It is an interprime number because it is at equal distance from previous prime (55535017) and next prime (55535023).

It is not an unprimeable number, because it can be changed into a prime (55535023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388356 + ... + 1388395.

It is an arithmetic number, because the mean of its divisors is an integer number (9718632).

Almost surely, 2^55535020 is an apocalyptic number.

It is an amenable number.

55535020 is an abundant number, since it is smaller than the sum of its proper divisors (61088564).

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

55535020 is a wasteful number, since it uses less digits than its factorization.

55535020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776760 (or 2776758 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 55535020 is about 7452.1822307295. The cubic root of 55535020 is about 381.5243937046.

Adding to 55535020 its reverse (2053555), we get a palindrome (57588575).

The spelling of 55535020 in words is "fifty-five million, five hundred thirty-five thousand, twenty".