55002020 has 24 divisors (see below), whose sum is σ = 115680768. Its totient is φ = 21967200.

The previous prime is 55002011. The next prime is 55002037. The reversal of 55002020 is 2020055.

It is a junction number, because it is equal to n+sod(n) for n = 55001986 and 55002004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14525 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (4820032).

Almost surely, 2^55002020 is an apocalyptic number.

It is an amenable number.

55002020 is an abundant number, since it is smaller than the sum of its proper divisors (60678748).

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

55002020 is a wasteful number, since it uses less digits than its factorization.

55002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 55002020 is about 7416.3346742174. The cubic root of 55002020 is about 380.2999017549.

Adding to 55002020 its reverse (2020055), we get a palindrome (57022075).

The spelling of 55002020 in words is "fifty-five million, two thousand, twenty".