3552221045 has 8 divisors (see below), whose sum is σ = 4263007320. Its totient is φ = 2841548800.

The previous prime is 3552221041. The next prime is 3552221047. The reversal of 3552221045 is 5401222553.

It can be written as a sum of positive squares in 4 ways, for example, as 120253156 + 3431967889 = 10966^2 + 58583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3552221045 - 2² = 3552221041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3552220999 and 3552221017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3552221041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72701 + ... + 111309.

It is an arithmetic number, because the mean of its divisors is an integer number (532875915).

Almost surely, 2^3552221045 is an apocalyptic number.

It is an amenable number.

3552221045 is a deficient number, since it is larger than the sum of its proper divisors (710786275).

3552221045 is a wasteful number, since it uses less digits than its factorization.

3552221045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57015.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 3552221045 is about 59600.5121202830. The cubic root of 3552221045 is about 1525.8083747878.

Adding to 3552221045 its reverse (5401222553), we get a palindrome (8953443598).

The spelling of 3552221045 in words is "three billion, five hundred fifty-two million, two hundred twenty-one thousand, forty-five".