35554221 has 10 divisors (see below), whose sum is σ = 53111982. Its totient is φ = 23702760.

The previous prime is 35554219. The next prime is 35554271. The reversal of 35554221 is 12245553.

It is a happy number.

35554221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 9696996 = 5085^2 + 3114^2 .

It is not a de Polignac number, because 35554221 - 2¹ = 35554219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35554201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 219390 + ... + 219551.

Almost surely, 2^35554221 is an apocalyptic number.

It is an amenable number.

35554221 is a deficient number, since it is larger than the sum of its proper divisors (17557761).

35554221 is an equidigital number, since it uses as much as digits as its factorization.

35554221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438953 (or 438944 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 35554221 is about 5962.7360330640. The cubic root of 35554221 is about 328.8241624046.

Adding to 35554221 its reverse (12245553), we get a palindrome (47799774).

It can be divided in two parts, 3555 and 4221, that added together give a 5-th power (7776 = 6⁵).

The spelling of 35554221 in words is "thirty-five million, five hundred fifty-four thousand, two hundred twenty-one".