10055177785 has 4 divisors (see below), whose sum is σ = 12066213348. Its totient is φ = 8044142224.

The previous prime is 10055177779. The next prime is 10055177807. The reversal of 10055177785 is 58777155001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2186778169 + 7868399616 = 46763^2 + 88704^2 .

It is a cyclic number.

It is not a de Polignac number, because 10055177785 - 2¹¹ = 10055175737 is a prime.

It is a super-2 number, since 2×10055177785² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 1005517774 + ... + 1005517783.

It is an arithmetic number, because the mean of its divisors is an integer number (3016553337).

Almost surely, 2^10055177785 is an apocalyptic number.

It is an amenable number.

10055177785 is a deficient number, since it is larger than the sum of its proper divisors (2011035563).

10055177785 is an equidigital number, since it uses as much as digits as its factorization.

10055177785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011035562.

The product of its (nonzero) digits is 343000, while the sum is 46.

The spelling of 10055177785 in words is "ten billion, fifty-five million, one hundred seventy-seven thousand, seven hundred eighty-five".