5715605551221 has 24 divisors (see below), whose sum is σ = 8306643180576. Its totient is φ = 3786988252320.

The previous prime is 5715605551217. The next prime is 5715605551231. The reversal of 5715605551221 is 1221555065175.

5715605551221 is a `hidden beast` number, since 5 + 7 + 1 + 5 + 60 + 55 + 512 + 21 = 666.

It is not a de Polignac number, because 5715605551221 - 2² = 5715605551217 is a prime.

It is a super-2 number, since 2×5715605551221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5715605551231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3580086 + ... + 4924248.

It is an arithmetic number, because the mean of its divisors is an integer number (346110132524).

Almost surely, 2^{5715605551221} is an apocalyptic number.

It is an amenable number.

5715605551221 is a deficient number, since it is larger than the sum of its proper divisors (2591037629355).

5715605551221 is a wasteful number, since it uses less digits than its factorization.

5715605551221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347073 (or 1347070 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 45.

The spelling of 5715605551221 in words is "five trillion, seven hundred fifteen billion, six hundred five million, five hundred fifty-one thousand, two hundred twenty-one".