4522345421 has 4 divisors (see below), whose sum is σ = 4933467744. Its totient is φ = 4111223100.

The previous prime is 4522345409. The next prime is 4522345453. The reversal of 4522345421 is 1245432254.

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 4522345421 - 2²² = 4518151117 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 (4522345621) 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, 205561145 + ... + 205561166.

It is an arithmetic number, because the mean of its divisors is an integer number (1233366936).

Almost surely, 2^4522345421 is an apocalyptic number.

It is an amenable number.

4522345421 is a deficient number, since it is larger than the sum of its proper divisors (411122323).

4522345421 is a wasteful number, since it uses less digits than its factorization.

4522345421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411122322.

The product of its digits is 38400, while the sum is 32.

The square root of 4522345421 is about 67248.3860103720. The cubic root of 4522345421 is about 1653.6918156893.

Adding to 4522345421 its reverse (1245432254), we get a palindrome (5767777675).

It can be divided in two parts, 4522 and 345421, that added together give a palindrome (349943).

The spelling of 4522345421 in words is "four billion, five hundred twenty-two million, three hundred forty-five thousand, four hundred twenty-one".