35544221 has 2 divisors, whose sum is σ = 35544222. Its totient is φ = 35544220.

The previous prime is 35544217. The next prime is 35544247. The reversal of 35544221 is 12244553.

It is a happy number.

It is an a-pointer prime, because the next prime (35544247) can be obtained adding 35544221 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 16924996 = 4315^2 + 4114^2 .

It is a cyclic number.

It is not a de Polignac number, because 35544221 - 2² = 35544217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35544281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17772110 + 17772111.

It is an arithmetic number, because the mean of its divisors is an integer number (17772111).

Almost surely, 2^35544221 is an apocalyptic number.

It is an amenable number.

35544221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35544221 is an equidigital number, since it uses as much as digits as its factorization.

35544221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 26.

The square root of 35544221 is about 5961.8974328648. The cubic root of 35544221 is about 328.7933310916.

Adding to 35544221 its reverse (12244553), we get a palindrome (47788774).

The spelling of 35544221 in words is "thirty-five million, five hundred forty-four thousand, two hundred twenty-one".