55505050493 has 4 divisors (see below), whose sum is σ = 58426368960. Its totient is φ = 52583732028.

The previous prime is 55505050477. The next prime is 55505050529. The reversal of 55505050493 is 39405050555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55505050493 - 2⁴ = 55505050477 is a prime.

It is a Duffinian number.

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 55505050493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505050693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460659205 + ... + 1460659242.

It is an arithmetic number, because the mean of its divisors is an integer number (14606592240).

Almost surely, 2^55505050493 is an apocalyptic number.

It is an amenable number.

55505050493 is a deficient number, since it is larger than the sum of its proper divisors (2921318467).

55505050493 is a wasteful number, since it uses less digits than its factorization.

55505050493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921318466.

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 55505050493 in words is "fifty-five billion, five hundred five million, fifty thousand, four hundred ninety-three".