32200561 has 4 divisors (see below), whose sum is σ = 32252224. Its totient is φ = 32148900.

The previous prime is 32200549. The next prime is 32200577. The reversal of 32200561 is 16500223.

It is a happy number.

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 4-Lehmer number, since φ(32200561) divides (32200561-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 32200561 - 2¹¹ = 32198513 is a prime.

It is a super-2 number, since 2×32200561² = 2073752257429442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32200541) 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, 24885 + ... + 26146.

It is an arithmetic number, because the mean of its divisors is an integer number (8063056).

Almost surely, 2^32200561 is an apocalyptic number.

It is an amenable number.

32200561 is a deficient number, since it is larger than the sum of its proper divisors (51663).

32200561 is an equidigital number, since it uses as much as digits as its factorization.

32200561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51662.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 32200561 is about 5674.5538150589. The cubic root of 32200561 is about 318.1421018850.

Adding to 32200561 its reverse (16500223), we get a palindrome (48700784).

It can be divided in two parts, 32200 and 561, that added together give a square (32761 = 181²).

The spelling of 32200561 in words is "thirty-two million, two hundred thousand, five hundred sixty-one".