55805707490 has 32 divisors (see below), whose sum is σ = 108955506240. Its totient is φ = 20456938944.

The previous prime is 55805707487. The next prime is 55805707537. The reversal of 55805707490 is 9470750855.

It is a super-2 number, since 2×55805707490² (a number of 22 digits) contains 22 as substring.

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, 1526084 + ... + 1562223.

It is an arithmetic number, because the mean of its divisors is an integer number (3404859570).

Almost surely, 2^55805707490 is an apocalyptic number.

55805707490 is a deficient number, since it is larger than the sum of its proper divisors (53149798750).

55805707490 is a wasteful number, since it uses less digits than its factorization.

55805707490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088466.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 55805707490 in words is "fifty-five billion, eight hundred five million, seven hundred seven thousand, four hundred ninety".