3753221253 has 4 divisors (see below), whose sum is σ = 5004295008. Its totient is φ = 2502147500.

The previous prime is 3753221231. The next prime is 3753221261. The reversal of 3753221253 is 3521223573.

It is a happy number.

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 not a de Polignac number, because 3753221253 - 2⁸ = 3753220997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3753221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625536873 + ... + 625536878.

It is an arithmetic number, because the mean of its divisors is an integer number (1251073752).

Almost surely, 2^3753221253 is an apocalyptic number.

It is an amenable number.

3753221253 is a deficient number, since it is larger than the sum of its proper divisors (1251073755).

3753221253 is a wasteful number, since it uses less digits than its factorization.

3753221253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251073754.

The product of its digits is 37800, while the sum is 33.

The square root of 3753221253 is about 61263.5393443768. The cubic root of 3753221253 is about 1554.0609781962.

It can be divided in two parts, 37532 and 21253, that added together give a palindrome (58785).

The spelling of 3753221253 in words is "three billion, seven hundred fifty-three million, two hundred twenty-one thousand, two hundred fifty-three".