550025601100555 has 4 divisors (see below), whose sum is σ = 660030721320672. Its totient is φ = 440020480880440.

The previous prime is 550025601100519. The next prime is 550025601100561. The reversal of 550025601100555 is 555001106520055.

It is a happy number.

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

It is not a de Polignac number, because 550025601100555 - 2⁹ = 550025601100043 is a prime.

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, 55002560110051 + ... + 55002560110060.

It is an arithmetic number, because the mean of its divisors is an integer number (165007680330168).

Almost surely, 2^{550025601100555} is an apocalyptic number.

550025601100555 is a deficient number, since it is larger than the sum of its proper divisors (110005120220117).

550025601100555 is a wasteful number, since it uses less digits than its factorization.

550025601100555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110005120220116.

The product of its (nonzero) digits is 187500, while the sum is 40.

The spelling of 550025601100555 in words is "five hundred fifty trillion, twenty-five billion, six hundred one million, one hundred thousand, five hundred fifty-five".