555056050561 has 8 divisors (see below), whose sum is σ = 561466157544. Its totient is φ = 548663875200.

The previous prime is 555056050531. The next prime is 555056050579. The reversal of 555056050561 is 165050650555.

It can be written as a sum of positive squares in 4 ways, for example, as 206224066161 + 348831984400 = 454119^2 + 590620^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 555056050561 - 2¹⁷ = 555055919489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555056050531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4420636 + ... + 4544461.

It is an arithmetic number, because the mean of its divisors is an integer number (70183269693).

Almost surely, 2^555056050561 is an apocalyptic number.

It is an amenable number.

555056050561 is a deficient number, since it is larger than the sum of its proper divisors (6410106983).

555056050561 is a wasteful number, since it uses less digits than its factorization.

555056050561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965811.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 555056050561 in words is "five hundred fifty-five billion, fifty-six million, fifty thousand, five hundred sixty-one".