32552409 has 4 divisors (see below), whose sum is σ = 43403216. Its totient is φ = 21701604.

The previous prime is 32552393. The next prime is 32552411. The reversal of 32552409 is 90425523.

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: 90425523 = 3 ⋅30141841.

It is not a de Polignac number, because 32552409 - 2⁴ = 32552393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32552459) 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, 5425399 + ... + 5425404.

It is an arithmetic number, because the mean of its divisors is an integer number (10850804).

Almost surely, 2^32552409 is an apocalyptic number.

It is an amenable number.

32552409 is a deficient number, since it is larger than the sum of its proper divisors (10850807).

32552409 is a wasteful number, since it uses less digits than its factorization.

32552409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850806.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 32552409 is about 5705.4718472708. The cubic root of 32552409 is about 319.2966616226.

The spelling of 32552409 in words is "thirty-two million, five hundred fifty-two thousand, four hundred nine".