55057773658 has 32 divisors (see below), whose sum is σ = 87457821696. Its totient is φ = 25943182848.

The previous prime is 55057773643. The next prime is 55057773691. The reversal of 55057773658 is 85637775055.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967360 + ... + 1022692.

It is an arithmetic number, because the mean of its divisors is an integer number (2733056928).

Almost surely, 2^55057773658 is an apocalyptic number.

55057773658 is a deficient number, since it is larger than the sum of its proper divisors (32400048038).

55057773658 is a wasteful number, since it uses less digits than its factorization.

55057773658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55678.

The product of its (nonzero) digits is 30870000, while the sum is 58.

The spelling of 55057773658 in words is "fifty-five billion, fifty-seven million, seven hundred seventy-three thousand, six hundred fifty-eight".