252434532613 has 4 divisors (see below), whose sum is σ = 255475912608. Its totient is φ = 249393152620.

The previous prime is 252434532527. The next prime is 252434532643. The reversal of 252434532613 is 316235434252.

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 252434532613 - 2⁹ = 252434532101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252434532643) 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, 1520689873 + ... + 1520690038.

It is an arithmetic number, because the mean of its divisors is an integer number (63868978152).

Almost surely, 2^252434532613 is an apocalyptic number.

It is an amenable number.

252434532613 is a deficient number, since it is larger than the sum of its proper divisors (3041379995).

252434532613 is an equidigital number, since it uses as much as digits as its factorization.

252434532613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041379994.

The product of its digits is 518400, while the sum is 40.

Adding to 252434532613 its reverse (316235434252), we get a palindrome (568669966865).

The spelling of 252434532613 in words is "two hundred fifty-two billion, four hundred thirty-four million, five hundred thirty-two thousand, six hundred thirteen".