4215221625 has 32 divisors (see below), whose sum is σ = 7060674816. Its totient is φ = 2233200000.

The previous prime is 4215221609. The next prime is 4215221629. The reversal of 4215221625 is 5261225124.

It is not a de Polignac number, because 4215221625 - 2⁴ = 4215221609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4215221592 and 4215221601.

It is not an unprimeable number, because it can be changed into a prime (4215221629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19405 + ... + 93845.

It is an arithmetic number, because the mean of its divisors is an integer number (220646088).

Almost surely, 2^4215221625 is an apocalyptic number.

It is an amenable number.

4215221625 is a deficient number, since it is larger than the sum of its proper divisors (2845453191).

4215221625 is a wasteful number, since it uses less digits than its factorization.

4215221625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74610 (or 74600 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 4215221625 is about 64924.7381588867. The cubic root of 4215221625 is about 1615.3754235261.

Adding to 4215221625 its reverse (5261225124), we get a palindrome (9476446749).

The spelling of 4215221625 in words is "four billion, two hundred fifteen million, two hundred twenty-one thousand, six hundred twenty-five".