35559221 has 2 divisors, whose sum is σ = 35559222. Its totient is φ = 35559220.

The previous prime is 35559217. The next prime is 35559253. The reversal of 35559221 is 12295553.

It is an a-pointer prime, because the next prime (35559253) can be obtained adding 35559221 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29866225 + 5692996 = 5465^2 + 2386^2 .

It is a cyclic number.

It is not a de Polignac number, because 35559221 - 2² = 35559217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35559211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17779610 + 17779611.

It is an arithmetic number, because the mean of its divisors is an integer number (17779611).

Almost surely, 2^35559221 is an apocalyptic number.

It is an amenable number.

35559221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35559221 is an equidigital number, since it uses as much as digits as its factorization.

35559221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 32.

The square root of 35559221 is about 5963.1552889389. The cubic root of 35559221 is about 328.8395758933.

The spelling of 35559221 in words is "thirty-five million, five hundred fifty-nine thousand, two hundred twenty-one".