52042499969 has 4 divisors (see below), whose sum is σ = 52042989780. Its totient is φ = 52042010160.

The previous prime is 52042499921. The next prime is 52042499981. The reversal of 52042499969 is 96999424025.

52042499969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 48713786944 + 3328713025 = 220712^2 + 57695^2 .

It is a cyclic number.

It is not a de Polignac number, because 52042499969 - 2²⁰ = 52041451393 is a prime.

It is a super-2 number, since 2×52042499969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52042492969) 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, 11174 + ... + 322815.

It is an arithmetic number, because the mean of its divisors is an integer number (13010747445).

Almost surely, 2^52042499969 is an apocalyptic number.

It is an amenable number.

52042499969 is a deficient number, since it is larger than the sum of its proper divisors (489811).

52042499969 is a wasteful number, since it uses less digits than its factorization.

52042499969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489810.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 52042499969 in words is "fifty-two billion, forty-two million, four hundred ninety-nine thousand, nine hundred sixty-nine".