252429067291 has 4 divisors (see below), whose sum is σ = 256567248784. Its totient is φ = 248290885800.

The previous prime is 252429067213. The next prime is 252429067301. The reversal of 252429067291 is 192760924252.

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

It is a cyclic number.

It is not a de Polignac number, because 252429067291 - 2⁹ = 252429066779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252429067211) 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, 2069090655 + ... + 2069090776.

It is an arithmetic number, because the mean of its divisors is an integer number (64141812196).

Almost surely, 2^252429067291 is an apocalyptic number.

252429067291 is a deficient number, since it is larger than the sum of its proper divisors (4138181493).

252429067291 is an equidigital number, since it uses as much as digits as its factorization.

252429067291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138181492.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 252429067291 in words is "two hundred fifty-two billion, four hundred twenty-nine million, sixty-seven thousand, two hundred ninety-one".