550525354261 has 4 divisors (see below), whose sum is σ = 550626615052. Its totient is φ = 550424093472.

The previous prime is 550525354237. The next prime is 550525354279. The reversal of 550525354261 is 162453525055.

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 168748424100 + 381776930161 = 410790^2 + 617881^2 .

It is a cyclic number.

It is not a de Polignac number, because 550525354261 - 2⁷ = 550525354133 is a prime.

It is a super-2 number, since 2×550525354261² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550525354231) 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, 50622240 + ... + 50633113.

It is an arithmetic number, because the mean of its divisors is an integer number (137656653763).

Almost surely, 2^550525354261 is an apocalyptic number.

It is an amenable number.

550525354261 is a deficient number, since it is larger than the sum of its proper divisors (101260791).

550525354261 is a wasteful number, since it uses less digits than its factorization.

550525354261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101260790.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 550525354261 in words is "five hundred fifty billion, five hundred twenty-five million, three hundred fifty-four thousand, two hundred sixty-one".