52117101515 has 4 divisors (see below), whose sum is σ = 62540521824. Its totient is φ = 41693681208.

The previous prime is 52117101437. The next prime is 52117101521. The reversal of 52117101515 is 51510171125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52117101515 - 2⁸ = 52117101259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211710147 + ... + 5211710156.

It is an arithmetic number, because the mean of its divisors is an integer number (15635130456).

Almost surely, 2^52117101515 is an apocalyptic number.

52117101515 is a deficient number, since it is larger than the sum of its proper divisors (10423420309).

52117101515 is a wasteful number, since it uses less digits than its factorization.

52117101515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423420308.

The product of its (nonzero) digits is 1750, while the sum is 29.

The spelling of 52117101515 in words is "fifty-two billion, one hundred seventeen million, one hundred one thousand, five hundred fifteen".