252404542113 has 4 divisors (see below), whose sum is σ = 336539389488. Its totient is φ = 168269694740.

The previous prime is 252404542087. The next prime is 252404542163. The reversal of 252404542113 is 311245404252.

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 252404542113 - 2⁹ = 252404541601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252404542163) 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, 42067423683 + ... + 42067423688.

It is an arithmetic number, because the mean of its divisors is an integer number (84134847372).

Almost surely, 2^252404542113 is an apocalyptic number.

It is an amenable number.

252404542113 is a deficient number, since it is larger than the sum of its proper divisors (84134847375).

252404542113 is an equidigital number, since it uses as much as digits as its factorization.

252404542113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84134847374.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 252404542113 its reverse (311245404252), we get a palindrome (563649946365).

The spelling of 252404542113 in words is "two hundred fifty-two billion, four hundred four million, five hundred forty-two thousand, one hundred thirteen".