561050553 has 8 divisors (see below), whose sum is σ = 854934208. Its totient is φ = 320600304.

The previous prime is 561050551. The next prime is 561050593. The reversal of 561050553 is 355050165.

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

It is not a de Polignac number, because 561050553 - 2¹ = 561050551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561050553.

It is not an unprimeable number, because it can be changed into a prime (561050551) 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, 13358326 + ... + 13358367.

It is an arithmetic number, because the mean of its divisors is an integer number (106866776).

Almost surely, 2^561050553 is an apocalyptic number.

It is an amenable number.

561050553 is a deficient number, since it is larger than the sum of its proper divisors (293883655).

561050553 is a wasteful number, since it uses less digits than its factorization.

561050553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26716703.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 561050553 is about 23686.5057152802. The cubic root of 561050553 is about 824.7721699630.

The spelling of 561050553 in words is "five hundred sixty-one million, fifty thousand, five hundred fifty-three".