55420132 has 6 divisors (see below), whose sum is σ = 96985238. Its totient is φ = 27710064.

The previous prime is 55420129. The next prime is 55420177. The reversal of 55420132 is 23102455.

55420132 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 only one way, i.e., 52911076 + 2509056 = 7274^2 + 1584^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6927513 + ... + 6927520.

Almost surely, 2^55420132 is an apocalyptic number.

It is an amenable number.

55420132 is a deficient number, since it is larger than the sum of its proper divisors (41565106).

55420132 is a wasteful number, since it uses less digits than its factorization.

55420132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855037 (or 13855035 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55420132 is about 7444.4698938205. The cubic root of 55420132 is about 381.2611193747.

Adding to 55420132 its reverse (23102455), we get a palindrome (78522587).

The spelling of 55420132 in words is "fifty-five million, four hundred twenty thousand, one hundred thirty-two".