561506153 has 16 divisors (see below), whose sum is σ = 636612480. Its totient is φ = 491361024.

The previous prime is 561506129. The next prime is 561506171. The reversal of 561506153 is 351605165.

It is a cyclic number.

It is not a de Polignac number, because 561506153 - 2⁶ = 561506089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561506123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25478 + ... + 42096.

It is an arithmetic number, because the mean of its divisors is an integer number (39788280).

Almost surely, 2^561506153 is an apocalyptic number.

It is an amenable number.

561506153 is a deficient number, since it is larger than the sum of its proper divisors (75106327).

561506153 is a wasteful number, since it uses less digits than its factorization.

561506153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16768.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 561506153 is about 23696.1210538772. The cubic root of 561506153 is about 824.9953611003.

The spelling of 561506153 in words is "five hundred sixty-one million, five hundred six thousand, one hundred fifty-three".