55550050505 has 4 divisors (see below), whose sum is σ = 66660060612. Its totient is φ = 44440040400.

The previous prime is 55550050483. The next prime is 55550050553. The reversal of 55550050505 is 50505005555.

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 44002613824 + 11547436681 = 209768^2 + 107459^2 .

It is not a de Polignac number, because 55550050505 - 2⁸ = 55550050249 is a prime.

It is a super-2 number, since 2×55550050505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555005046 + ... + 5555005055.

It is an arithmetic number, because the mean of its divisors is an integer number (16665015153).

Almost surely, 2^55550050505 is an apocalyptic number.

It is an amenable number.

55550050505 is a deficient number, since it is larger than the sum of its proper divisors (11110010107).

55550050505 is a wasteful number, since it uses less digits than its factorization.

55550050505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110010106.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55550050505 in words is "fifty-five billion, five hundred fifty million, fifty thousand, five hundred five".