55733387 has 8 divisors (see below), whose sum is σ = 56478576. Its totient is φ = 54991872.

The previous prime is 55733351. The next prime is 55733401. The reversal of 55733387 is 78333755.

It is a happy number.

55733387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55733387 - 2⁸ = 55733131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55733317) 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 in 7 ways as a sum of consecutive naturals, for example, 42323 + ... + 43619.

It is an arithmetic number, because the mean of its divisors is an integer number (7059822).

Almost surely, 2^55733387 is an apocalyptic number.

55733387 is a deficient number, since it is larger than the sum of its proper divisors (745189).

55733387 is a wasteful number, since it uses less digits than its factorization.

55733387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its digits is 264600, while the sum is 41.

The square root of 55733387 is about 7465.4796898793. The cubic root of 55733387 is about 381.9781129241.

The spelling of 55733387 in words is "fifty-five million, seven hundred thirty-three thousand, three hundred eighty-seven".