3753553121 has 4 divisors (see below), whose sum is σ = 3824374932. Its totient is φ = 3682731312.

The previous prime is 3753553099. The next prime is 3753553123. The reversal of 3753553121 is 1213553573.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2262048721 + 1491504400 = 47561^2 + 38620^2 .

It is a cyclic number.

It is not a de Polignac number, because 3753553121 - 2¹⁴ = 3753536737 is a prime.

It is a super-2 number, since 2×3753553121² = 28178322064337681282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3753553123) 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, 35410826 + ... + 35410931.

It is an arithmetic number, because the mean of its divisors is an integer number (956093733).

Almost surely, 2^3753553121 is an apocalyptic number.

It is an amenable number.

3753553121 is a deficient number, since it is larger than the sum of its proper divisors (70821811).

3753553121 is an equidigital number, since it uses as much as digits as its factorization.

3753553121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70821810.

The product of its digits is 47250, while the sum is 35.

The square root of 3753553121 is about 61266.2478123151. The cubic root of 3753553121 is about 1554.1067813320.

The spelling of 3753553121 in words is "three billion, seven hundred fifty-three million, five hundred fifty-three thousand, one hundred twenty-one".