55561011290 has 8 divisors (see below), whose sum is σ = 100009820340. Its totient is φ = 22224404512.

The previous prime is 55561011281. The next prime is 55561011329. The reversal of 55561011290 is 9211016555.

It can be written as a sum of positive squares in 2 ways, for example, as 54119973769 + 1441037521 = 232637^2 + 37961^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55561011290.

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, 2778050555 + ... + 2778050574.

Almost surely, 2^55561011290 is an apocalyptic number.

55561011290 is a deficient number, since it is larger than the sum of its proper divisors (44448809050).

55561011290 is a wasteful number, since it uses less digits than its factorization.

55561011290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556101136.

The product of its (nonzero) digits is 13500, while the sum is 35.

The spelling of 55561011290 in words is "fifty-five billion, five hundred sixty-one million, eleven thousand, two hundred ninety".