32426561 has 4 divisors (see below), whose sum is σ = 32674224.
Its totient is φ = 32178900.
The previous prime is 32426551. The next prime is 32426579. The reversal of 32426561 is 16562423.
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, and also an emirpimes, since its reverse is a distinct semiprime: 16562423 = 107 ⋅154789.
It is a cyclic number.
It is not a de Polignac number, because 32426561 - 210 = 32425537 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (32426551) 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, 123635 + ... + 123896.
It is an arithmetic number, because the mean of its divisors is an integer number (8168556).
Almost surely, 232426561 is an apocalyptic number.
It is an amenable number.
32426561 is a deficient number, since it is larger than the sum of its proper divisors (247663).
32426561 is a wasteful number, since it uses less digits than its factorization.
32426561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 247662.
The product of its digits is 8640, while the sum is 29.
The square root of 32426561 is about 5694.4324563559.
The cubic root of 32426561 is about 318.8846620044.
Adding to 32426561 its reverse (16562423), we get a palindrome (48988984).
The spelling of 32426561 in words is "thirty-two million, four hundred twenty-six thousand, five hundred sixty-one".