5247691121 has 8 divisors (see below), whose sum is σ = 5571282024. Its totient is φ = 4925756160.

The previous prime is 5247691091. The next prime is 5247691139. The reversal of 5247691121 is 1211967425.

It can be written as a sum of positive squares in 4 ways, for example, as 394618225 + 4853072896 = 19865^2 + 69664^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5247691121 - 2¹⁴ = 5247674737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5247691171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407450 + ... + 420131.

It is an arithmetic number, because the mean of its divisors is an integer number (696410253).

Almost surely, 2^5247691121 is an apocalyptic number.

It is an amenable number.

5247691121 is a deficient number, since it is larger than the sum of its proper divisors (323590903).

5247691121 is a wasteful number, since it uses less digits than its factorization.

5247691121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827971.

The product of its digits is 30240, while the sum is 38.

The square root of 5247691121 is about 72440.9492000208. The cubic root of 5247691121 is about 1737.7585001656.

The spelling of 5247691121 in words is "five billion, two hundred forty-seven million, six hundred ninety-one thousand, one hundred twenty-one".