4254054221 has 4 divisors (see below), whose sum is σ = 4254250752. Its totient is φ = 4253857692.

The previous prime is 4254054197. The next prime is 4254054227. The reversal of 4254054221 is 1224504524.

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 4254054221 - 2²² = 4249859917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4254054227) 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, 61115 + ... + 110648.

It is an arithmetic number, because the mean of its divisors is an integer number (1063562688).

Almost surely, 2^4254054221 is an apocalyptic number.

It is an amenable number.

4254054221 is a deficient number, since it is larger than the sum of its proper divisors (196531).

4254054221 is a wasteful number, since it uses less digits than its factorization.

4254054221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196530.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4254054221 is about 65223.1110956845. Note that the first 3 decimals coincide. The cubic root of 4254054221 is about 1620.3207997780.

Adding to 4254054221 its reverse (1224504524), we get a palindrome (5478558745).

The spelling of 4254054221 in words is "four billion, two hundred fifty-four million, fifty-four thousand, two hundred twenty-one".