55020405312 has 42 divisors (see below), whose sum is σ = 157706059238. Its totient is φ = 18340134912.

The previous prime is 55020405269. The next prime is 55020405329. The reversal of 55020405312 is 21350402055.

It is a happy number.

55020405312 is a `hidden beast` number, since 550 + 20 + 40 + 53 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49007333376 + 6013071936 = 221376^2 + 77544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47760193 + ... + 47761344.

Almost surely, 2^55020405312 is an apocalyptic number.

It is an amenable number.

55020405312 is an abundant number, since it is smaller than the sum of its proper divisors (102685653926).

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

55020405312 is a wasteful number, since it uses less digits than its factorization.

55020405312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95521555 (or 95521542 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 55020405312 its reverse (21350402055), we get a palindrome (76370807367).

The spelling of 55020405312 in words is "fifty-five billion, twenty million, four hundred five thousand, three hundred twelve".