55133564 has 6 divisors (see below), whose sum is σ = 96483744. Its totient is φ = 27566780.

The previous prime is 55133549. The next prime is 55133579. The reversal of 55133564 is 46533155.

55133564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55133549) and next prime (55133579).

It is a self number, because there is not a number n which added to its sum of digits gives 55133564.

It is a congruent number.

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, 6891692 + ... + 6891699.

It is an arithmetic number, because the mean of its divisors is an integer number (16080624).

Almost surely, 2^55133564 is an apocalyptic number.

It is an amenable number.

55133564 is a deficient number, since it is larger than the sum of its proper divisors (41350180).

55133564 is a wasteful number, since it uses less digits than its factorization.

55133564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13783395 (or 13783393 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

The square root of 55133564 is about 7425.1979098203. The cubic root of 55133564 is about 380.6028381559.

The spelling of 55133564 in words is "fifty-five million, one hundred thirty-three thousand, five hundred sixty-four".