561267 has 24 divisors (see below), whose sum is σ = 948480. Its totient is φ = 313200.

The previous prime is 561251. The next prime is 561277. The reversal of 561267 is 762165.

It is not a de Polignac number, because 561267 - 2⁴ = 561251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561267.

It is not an unprimeable number, because it can be changed into a prime (561277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3642 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (39520).

2⁵⁶¹²⁶⁷ is an apocalyptic number.

561267 is a deficient number, since it is larger than the sum of its proper divisors (387213).

561267 is a wasteful number, since it uses less digits than its factorization.

561267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 220 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 561267 is about 749.1775490496. The cubic root of 561267 is about 82.4878218939.

It can be divided in two parts, 561 and 267, that added together give a palindrome (828).

The spelling of 561267 in words is "five hundred sixty-one thousand, two hundred sixty-seven".