52515210523 has 4 divisors (see below), whose sum is σ = 52516048608. Its totient is φ = 52514372440.

The previous prime is 52515210499. The next prime is 52515210547. The reversal of 52515210523 is 32501251525.

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

It is an interprime number because it is at equal distance from previous prime (52515210499) and next prime (52515210547).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52515210523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52515210823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316723 + ... + 453148.

It is an arithmetic number, because the mean of its divisors is an integer number (13129012152).

Almost surely, 2^52515210523 is an apocalyptic number.

52515210523 is a deficient number, since it is larger than the sum of its proper divisors (838085).

52515210523 is an equidigital number, since it uses as much as digits as its factorization.

52515210523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838084.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 52515210523 in words is "fifty-two billion, five hundred fifteen million, two hundred ten thousand, five hundred twenty-three".