55572789 has 8 divisors (see below), whose sum is σ = 74135232. Its totient is φ = 37029440.

The previous prime is 55572763. The next prime is 55572791. The reversal of 55572789 is 98727555.

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 55572789 - 2⁷ = 55572661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4717 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (9266904).

Almost surely, 2^55572789 is an apocalyptic number.

It is an amenable number.

55572789 is a deficient number, since it is larger than the sum of its proper divisors (18562443).

55572789 is a wasteful number, since it uses less digits than its factorization.

55572789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547.

The product of its digits is 882000, while the sum is 48.

The square root of 55572789 is about 7454.7158899585. The cubic root of 55572789 is about 381.6108648441.

The spelling of 55572789 in words is "fifty-five million, five hundred seventy-two thousand, seven hundred eighty-nine".