550505601061 has 4 divisors (see below), whose sum is σ = 592852185772. Its totient is φ = 508159016352.

The previous prime is 550505601001. The next prime is 550505601071. The reversal of 550505601061 is 160106505055.

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 184685062500 + 365820538561 = 429750^2 + 604831^2 .

It is not a de Polignac number, because 550505601061 - 2⁷ = 550505600933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550505601001) 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, 21173292336 + ... + 21173292361.

It is an arithmetic number, because the mean of its divisors is an integer number (148213046443).

Almost surely, 2^550505601061 is an apocalyptic number.

It is an amenable number.

550505601061 is a deficient number, since it is larger than the sum of its proper divisors (42346584711).

550505601061 is a wasteful number, since it uses less digits than its factorization.

550505601061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42346584710.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 550505601061 in words is "five hundred fifty billion, five hundred five million, six hundred one thousand, sixty-one".