55900340819 has 4 divisors (see below), whose sum is σ = 58842464040. Its totient is φ = 52958217600.

The previous prime is 55900340779. The next prime is 55900340849. The reversal of 55900340819 is 91804300955.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55900340819 - 2⁸ = 55900340563 is a prime.

It is a super-2 number, since 2×55900340819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55900340819.

It is not an unprimeable number, because it can be changed into a prime (55900340849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471061582 + ... + 1471061619.

It is an arithmetic number, because the mean of its divisors is an integer number (14710616010).

Almost surely, 2^55900340819 is an apocalyptic number.

55900340819 is a deficient number, since it is larger than the sum of its proper divisors (2942123221).

55900340819 is a wasteful number, since it uses less digits than its factorization.

55900340819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942123220.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 55900340819 in words is "fifty-five billion, nine hundred million, three hundred forty thousand, eight hundred nineteen".