36280561 has 4 divisors (see below), whose sum is σ = 36301824. Its totient is φ = 36259300.

The previous prime is 36280553. The next prime is 36280577. The reversal of 36280561 is 16508263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36280561 - 2³ = 36280553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36280501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7825 + ... + 11566.

It is an arithmetic number, because the mean of its divisors is an integer number (9075456).

Almost surely, 2^36280561 is an apocalyptic number.

It is an amenable number.

36280561 is a deficient number, since it is larger than the sum of its proper divisors (21263).

36280561 is a wasteful number, since it uses less digits than its factorization.

36280561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21262.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 36280561 is about 6023.3347076184. The cubic root of 36280561 is about 331.0482765631.

The spelling of 36280561 in words is "thirty-six million, two hundred eighty thousand, five hundred sixty-one".