561453 has 16 divisors (see below), whose sum is σ = 798720. Its totient is φ = 350064.

The previous prime is 561439. The next prime is 561461. The reversal of 561453 is 354165.

It is not a de Polignac number, because 561453 - 2⁶ = 561389 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561053) 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, 5400 + ... + 5502.

It is an arithmetic number, because the mean of its divisors is an integer number (49920).

2⁵⁶¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

561453 is a deficient number, since it is larger than the sum of its proper divisors (237267).

561453 is a wasteful number, since it uses less digits than its factorization.

561453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its digits is 1800, while the sum is 24.

The square root of 561453 is about 749.3016748947. The cubic root of 561453 is about 82.4969328520.

The spelling of 561453 in words is "five hundred sixty-one thousand, four hundred fifty-three".