55302332220 has 72 divisors (see below), whose sum is σ = 167769738864. Its totient is φ = 14745589248.

The previous prime is 55302332219. The next prime is 55302332227. The reversal of 55302332220 is 2223320355.

55302332220 is a `hidden beast` number, since 5 + 5 + 302 + 332 + 2 + 20 = 666.

55302332220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55302332227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2730772 + ... + 2750948.

It is an arithmetic number, because the mean of its divisors is an integer number (2330135262).

Almost surely, 2^55302332220 is an apocalyptic number.

It is an amenable number.

55302332220 is an abundant number, since it is smaller than the sum of its proper divisors (112467406644).

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

55302332220 is a wasteful number, since it uses less digits than its factorization.

55302332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35419 (or 35414 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 55302332220 its reverse (2223320355), we get a palindrome (57525652575).

The spelling of 55302332220 in words is "fifty-five billion, three hundred two million, three hundred thirty-two thousand, two hundred twenty".