4259221515 has 64 divisors (see below), whose sum is σ = 7829483520. Its totient is φ = 2195164800.

The previous prime is 4259221513. The next prime is 4259221523. The reversal of 4259221515 is 5151229524.

4259221515 is a `hidden beast` number, since 42 + 592 + 2 + 15 + 15 = 666.

It is not a de Polignac number, because 4259221515 - 2¹ = 4259221513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4259221515.

It is not an unprimeable number, because it can be changed into a prime (4259221511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 751422 + ... + 757068.

It is an arithmetic number, because the mean of its divisors is an integer number (122335680).

Almost surely, 2^4259221515 is an apocalyptic number.

4259221515 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4259221515 is a deficient number, since it is larger than the sum of its proper divisors (3570262005).

4259221515 is a wasteful number, since it uses less digits than its factorization.

4259221515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849 (or 5843 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 4259221515 is about 65262.7115204387. The cubic root of 4259221515 is about 1620.9765888027.

The spelling of 4259221515 in words is "four billion, two hundred fifty-nine million, two hundred twenty-one thousand, five hundred fifteen".