4221415552025 has 24 divisors (see below), whose sum is σ = 5982827223360. Its totient is φ = 2894453501760.

The previous prime is 4221415552019. The next prime is 4221415552073. The reversal of 4221415552025 is 5202555141224.

It is a de Polignac number, because none of the positive numbers 2^k-4221415552025 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4221415552025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245002 + ... + 3161148.

It is an arithmetic number, because the mean of its divisors is an integer number (249284467640).

Almost surely, 2^{4221415552025} is an apocalyptic number.

It is an amenable number.

4221415552025 is a deficient number, since it is larger than the sum of its proper divisors (1761411671335).

4221415552025 is a wasteful number, since it uses less digits than its factorization.

4221415552025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928753 (or 1928748 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 4221415552025 in words is "four trillion, two hundred twenty-one billion, four hundred fifteen million, five hundred fifty-two thousand, twenty-five".