4221255437 has 8 divisors (see below), whose sum is σ = 4915316736. Its totient is φ = 3549950352.

The previous prime is 4221255421. The next prime is 4221255439. The reversal of 4221255437 is 7345521224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4221255437 - 2⁴ = 4221255421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4221255397 and 4221255406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221255439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5688653 + ... + 5689394.

It is an arithmetic number, because the mean of its divisors is an integer number (614414592).

Almost surely, 2^4221255437 is an apocalyptic number.

It is an amenable number.

4221255437 is a deficient number, since it is larger than the sum of its proper divisors (694061299).

4221255437 is a wasteful number, since it uses less digits than its factorization.

4221255437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378107.

The product of its digits is 67200, while the sum is 35.

The square root of 4221255437 is about 64971.1892841743. The cubic root of 4221255437 is about 1616.1458238758.

The spelling of 4221255437 in words is "four billion, two hundred twenty-one million, two hundred fifty-five thousand, four hundred thirty-seven".