52154879257 has 6 divisors (see below), whose sum is σ = 56475401982. Its totient is φ = 48142965312.

The previous prime is 52154879209. The next prime is 52154879297. The reversal of 52154879257 is 75297845125.

It can be written as a sum of positive squares in 3 ways, for example, as 1396591641 + 50758287616 = 37371^2 + 225296^2 .

It is not a de Polignac number, because 52154879257 - 2²⁷ = 52020661529 is a prime.

It is a super-3 number, since 3×52154879257³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52154879198 and 52154879207.

It is not an unprimeable number, because it can be changed into a prime (52154879297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154304208 + ... + 154304545.

It is an arithmetic number, because the mean of its divisors is an integer number (9412566997).

Almost surely, 2^52154879257 is an apocalyptic number.

It is an amenable number.

52154879257 is a deficient number, since it is larger than the sum of its proper divisors (4320522725).

52154879257 is a wasteful number, since it uses less digits than its factorization.

52154879257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308608779 (or 308608766 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 55.

The spelling of 52154879257 in words is "fifty-two billion, one hundred fifty-four million, eight hundred seventy-nine thousand, two hundred fifty-seven".