52505070509 has 4 divisors (see below), whose sum is σ = 52510005216. Its totient is φ = 52500135804.

The previous prime is 52505070479. The next prime is 52505070547. The reversal of 52505070509 is 90507050525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52505070509 - 2²⁴ = 52488293293 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505070599) 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, 2451359 + ... + 2472684.

It is an arithmetic number, because the mean of its divisors is an integer number (13127501304).

Almost surely, 2^52505070509 is an apocalyptic number.

It is an amenable number.

52505070509 is a deficient number, since it is larger than the sum of its proper divisors (4934707).

52505070509 is a wasteful number, since it uses less digits than its factorization.

52505070509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934706.

The product of its (nonzero) digits is 78750, while the sum is 38.

The spelling of 52505070509 in words is "fifty-two billion, five hundred five million, seventy thousand, five hundred nine".