4552522121 has 4 divisors (see below), whose sum is σ = 5202882432. Its totient is φ = 3902161812.

The previous prime is 4552522111. The next prime is 4552522127. The reversal of 4552522121 is 1212252554.

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 4552522121 - 2³⁰ = 3478780297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4552522127) 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, 325180145 + ... + 325180158.

It is an arithmetic number, because the mean of its divisors is an integer number (1300720608).

Almost surely, 2^4552522121 is an apocalyptic number.

It is an amenable number.

4552522121 is a deficient number, since it is larger than the sum of its proper divisors (650360311).

4552522121 is an equidigital number, since it uses as much as digits as its factorization.

4552522121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650360310.

The product of its digits is 8000, while the sum is 29.

The square root of 4552522121 is about 67472.3804308104. The cubic root of 4552522121 is about 1657.3619152628.

Adding to 4552522121 its reverse (1212252554), we get a palindrome (5764774675).

The spelling of 4552522121 in words is "four billion, five hundred fifty-two million, five hundred twenty-two thousand, one hundred twenty-one".