55471785 has 8 divisors (see below), whose sum is σ = 88754880. Its totient is φ = 29584944.

The previous prime is 55471777. The next prime is 55471807. The reversal of 55471785 is 58717455.

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

It is not a de Polignac number, because 55471785 - 2³ = 55471777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849045 + ... + 1849074.

It is an arithmetic number, because the mean of its divisors is an integer number (11094360).

Almost surely, 2^55471785 is an apocalyptic number.

It is an amenable number.

55471785 is a deficient number, since it is larger than the sum of its proper divisors (33283095).

55471785 is a wasteful number, since it uses less digits than its factorization.

55471785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698127.

The product of its digits is 196000, while the sum is 42.

The square root of 55471785 is about 7447.9383053299. The cubic root of 55471785 is about 381.3795310110.

The spelling of 55471785 in words is "fifty-five million, four hundred seventy-one thousand, seven hundred eighty-five".