55400084 has 6 divisors (see below), whose sum is σ = 96950154. Its totient is φ = 27700040.

The previous prime is 55400083. The next prime is 55400099. The reversal of 55400084 is 48000455.

55400084 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., 42640900 + 12759184 = 6530^2 + 3572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55400083) by changing a digit.

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, 6925007 + ... + 6925014.

It is an arithmetic number, because the mean of its divisors is an integer number (16158359).

Almost surely, 2^55400084 is an apocalyptic number.

It is an amenable number.

55400084 is a deficient number, since it is larger than the sum of its proper divisors (41550070).

55400084 is a wasteful number, since it uses less digits than its factorization.

55400084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13850025 (or 13850023 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 55400084 is about 7443.1232691660. The cubic root of 55400084 is about 381.2151406271.

The spelling of 55400084 in words is "fifty-five million, four hundred thousand, eighty-four".