32057681 has 4 divisors (see below), whose sum is σ = 32154864. Its totient is φ = 31960500.

The previous prime is 32057677. The next prime is 32057687. The reversal of 32057681 is 18675023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18675023 = 599 ⋅31177.

It is a cyclic number.

It is not a de Polignac number, because 32057681 - 2² = 32057677 is a prime.

It is a super-2 number, since 2×32057681² = 2055389822195522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32057687) 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, 48095 + ... + 48756.

It is an arithmetic number, because the mean of its divisors is an integer number (8038716).

Almost surely, 2^32057681 is an apocalyptic number.

It is an amenable number.

32057681 is a deficient number, since it is larger than the sum of its proper divisors (97183).

32057681 is an equidigital number, since it uses as much as digits as its factorization.

32057681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97182.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 32057681 is about 5661.9502823674. The cubic root of 32057681 is about 317.6708518939.

The spelling of 32057681 in words is "thirty-two million, fifty-seven thousand, six hundred eighty-one".