561055153 has 4 divisors (see below), whose sum is σ = 561338100. Its totient is φ = 560772208.

The previous prime is 561055133. The next prime is 561055171. The reversal of 561055153 is 351550165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351550165 = 5 ⋅70310033.

It can be written as a sum of positive squares in 2 ways, for example, as 317445489 + 243609664 = 17817^2 + 15608^2 .

It is a cyclic number.

It is not a de Polignac number, because 561055153 - 2¹³ = 561046961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561055133) 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, 138478 + ... + 142471.

It is an arithmetic number, because the mean of its divisors is an integer number (140334525).

Almost surely, 2^561055153 is an apocalyptic number.

It is an amenable number.

561055153 is a deficient number, since it is larger than the sum of its proper divisors (282947).

561055153 is a wasteful number, since it uses less digits than its factorization.

561055153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282946.

The product of its (nonzero) digits is 11250, while the sum is 31.

The square root of 561055153 is about 23686.6028167823. The cubic root of 561055153 is about 824.7744240330.

The spelling of 561055153 in words is "five hundred sixty-one million, fifty-five thousand, one hundred fifty-three".