32561427 has 4 divisors (see below), whose sum is σ = 43415240. Its totient is φ = 21707616.

The previous prime is 32561413. The next prime is 32561447. The reversal of 32561427 is 72416523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72416523 = 3 ⋅24138841.

It is not a de Polignac number, because 32561427 - 2⁴ = 32561411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32561394 and 32561403.

It is not an unprimeable number, because it can be changed into a prime (32561447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5426902 + ... + 5426907.

It is an arithmetic number, because the mean of its divisors is an integer number (10853810).

Almost surely, 2^32561427 is an apocalyptic number.

32561427 is a deficient number, since it is larger than the sum of its proper divisors (10853813).

32561427 is a wasteful number, since it uses less digits than its factorization.

32561427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853812.

The product of its digits is 10080, while the sum is 30.

The square root of 32561427 is about 5706.2620865151. The cubic root of 32561427 is about 319.3261438384.

The spelling of 32561427 in words is "thirty-two million, five hundred sixty-one thousand, four hundred twenty-seven".