252405435113 has 4 divisors (see below), whose sum is σ = 271821237828. Its totient is φ = 232989632400.

The previous prime is 252405435101. The next prime is 252405435181. The reversal of 252405435113 is 311534504252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27361460569 + 225043974544 = 165413^2 + 474388^2 .

It is a cyclic number.

It is not a de Polignac number, because 252405435113 - 2³⁶ = 183685958377 is a prime.

It is a super-3 number, since 3×252405435113³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252405435413) 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, 9707901338 + ... + 9707901363.

It is an arithmetic number, because the mean of its divisors is an integer number (67955309457).

Almost surely, 2^252405435113 is an apocalyptic number.

It is an amenable number.

252405435113 is a deficient number, since it is larger than the sum of its proper divisors (19415802715).

252405435113 is a wasteful number, since it uses less digits than its factorization.

252405435113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415802714.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 252405435113 its reverse (311534504252), we get a palindrome (563939939365).

The spelling of 252405435113 in words is "two hundred fifty-two billion, four hundred five million, four hundred thirty-five thousand, one hundred thirteen".