561562 has 8 divisors (see below), whose sum is σ = 856800. Its totient is φ = 275964.

The previous prime is 561559. The next prime is 561599. The reversal of 561562 is 265165.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262 + ... + 2497.

It is an arithmetic number, because the mean of its divisors is an integer number (107100).

2⁵⁶¹⁵⁶² is an apocalyptic number.

561562 is a deficient number, since it is larger than the sum of its proper divisors (295238).

561562 is a wasteful number, since it uses less digits than its factorization.

561562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820.

The product of its digits is 1800, while the sum is 25.

The square root of 561562 is about 749.3744057546. The cubic root of 561562 is about 82.5022711343.

The spelling of 561562 in words is "five hundred sixty-one thousand, five hundred sixty-two".