5201221551 has 8 divisors (see below), whose sum is σ = 6935838720. Its totient is φ = 3467042712.

The previous prime is 5201221549. The next prime is 5201221559. The reversal of 5201221551 is 1551221025.

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

It is not a de Polignac number, because 5201221551 - 2¹ = 5201221549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201221559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80815 + ... + 130128.

It is an arithmetic number, because the mean of its divisors is an integer number (866979840).

Almost surely, 2^5201221551 is an apocalyptic number.

5201221551 is a deficient number, since it is larger than the sum of its proper divisors (1734617169).

5201221551 is a wasteful number, since it uses less digits than its factorization.

5201221551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219165.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 5201221551 is about 72119.4949441550. The cubic root of 5201221551 is about 1732.6138609892.

Adding to 5201221551 its reverse (1551221025), we get a palindrome (6752442576).

The spelling of 5201221551 in words is "five billion, two hundred one million, two hundred twenty-one thousand, five hundred fifty-one".