561055106051 has 4 divisors (see below), whose sum is σ = 612060115704. Its totient is φ = 510050096400.

The previous prime is 561055106021. The next prime is 561055106077. The reversal of 561055106051 is 150601550165.

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

It is a cyclic number.

It is not a de Polignac number, because 561055106051 - 2⁶ = 561055105987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561055106021) 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, 25502504810 + ... + 25502504831.

It is an arithmetic number, because the mean of its divisors is an integer number (153015028926).

Almost surely, 2^561055106051 is an apocalyptic number.

561055106051 is a deficient number, since it is larger than the sum of its proper divisors (51005009653).

561055106051 is a wasteful number, since it uses less digits than its factorization.

561055106051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51005009652.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 561055106051 in words is "five hundred sixty-one billion, fifty-five million, one hundred six thousand, fifty-one".