3253056221 has 4 divisors (see below), whose sum is σ = 3394493472. Its totient is φ = 3111618972.

The previous prime is 3253056211. The next prime is 3253056227. The reversal of 3253056221 is 1226503523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3253056221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3253056227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70718591 + ... + 70718636.

It is an arithmetic number, because the mean of its divisors is an integer number (848623368).

Almost surely, 2^3253056221 is an apocalyptic number.

It is an amenable number.

3253056221 is a deficient number, since it is larger than the sum of its proper divisors (141437251).

3253056221 is a wasteful number, since it uses less digits than its factorization.

3253056221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141437250.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3253056221 is about 57035.5697876334. The cubic root of 3253056221 is about 1481.7121986196.

Adding to 3253056221 its reverse (1226503523), we get a palindrome (4479559744).

The spelling of 3253056221 in words is "three billion, two hundred fifty-three million, fifty-six thousand, two hundred twenty-one".