4425054421 has 4 divisors (see below), whose sum is σ = 4567798144. Its totient is φ = 4282310700.

The previous prime is 4425054409. The next prime is 4425054493. The reversal of 4425054421 is 1244505244.

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-4425054421 is a prime.

It is a super-2 number, since 2×4425054421² = 39162213257623290482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 142743691 = 4425054421 / (4 + 4 + 2 + 5 + 0 + 5 + 4 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425054121) 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, 71371815 + ... + 71371876.

It is an arithmetic number, because the mean of its divisors is an integer number (1141949536).

Almost surely, 2^4425054421 is an apocalyptic number.

It is an amenable number.

4425054421 is a deficient number, since it is larger than the sum of its proper divisors (142743723).

4425054421 is a wasteful number, since it uses less digits than its factorization.

4425054421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142743722.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 4425054421 is about 66521.0825302776. The cubic root of 4425054421 is about 1641.7469018283.

Adding to 4425054421 its reverse (1244505244), we get a palindrome (5669559665).

The spelling of 4425054421 in words is "four billion, four hundred twenty-five million, fifty-four thousand, four hundred twenty-one".