32256401 has 2 divisors, whose sum is σ = 32256402. Its totient is φ = 32256400.

The previous prime is 32256391. The next prime is 32256409. The reversal of 32256401 is 10465223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17007376 + 15249025 = 4124^2 + 3905^2 .

It is an emirp because it is prime and its reverse (10465223) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32256401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32256409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16128200 + 16128201.

It is an arithmetic number, because the mean of its divisors is an integer number (16128201).

Almost surely, 2^32256401 is an apocalyptic number.

It is an amenable number.

32256401 is a deficient number, since it is larger than the sum of its proper divisors (1).

32256401 is an equidigital number, since it uses as much as digits as its factorization.

32256401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 32256401 is about 5679.4718944634. The cubic root of 32256401 is about 318.3258957416.

The spelling of 32256401 in words is "thirty-two million, two hundred fifty-six thousand, four hundred one".