55061785 has 8 divisors (see below), whose sum is σ = 66870720. Its totient is φ = 43518384.

The previous prime is 55061779. The next prime is 55061803. The reversal of 55061785 is 58716055.

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 55061785 - 2³ = 55061777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65925 + ... + 66754.

It is an arithmetic number, because the mean of its divisors is an integer number (8358840).

Almost surely, 2^55061785 is an apocalyptic number.

It is an amenable number.

55061785 is a deficient number, since it is larger than the sum of its proper divisors (11808935).

55061785 is a wasteful number, since it uses less digits than its factorization.

55061785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132767.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 55061785 is about 7420.3628617474. The cubic root of 55061785 is about 380.4375960693.

The spelling of 55061785 in words is "fifty-five million, sixty-one thousand, seven hundred eighty-five".