561495 has 32 divisors (see below), whose sum is σ = 1016064. Its totient is φ = 262400.

The previous prime is 561461. The next prime is 561521. The reversal of 561495 is 594165.

561495 = T₃₁₄ + T₃₁₅ + ... + T₃₂₄.

It is not a de Polignac number, because 561495 - 2⁷ = 561367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6724 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁵⁶¹⁴⁹⁵ is an apocalyptic number.

561495 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

561495 is a deficient number, since it is larger than the sum of its proper divisors (454569).

561495 is a wasteful number, since it uses less digits than its factorization.

561495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143.

The product of its digits is 5400, while the sum is 30.

The square root of 561495 is about 749.3297004657. The cubic root of 561495 is about 82.4989898866.

It can be divided in two parts, 56 and 1495, that added together give a palindrome (1551).

The spelling of 561495 in words is "five hundred sixty-one thousand, four hundred ninety-five".