252958389551 has 4 divisors (see below), whose sum is σ = 289095302352. Its totient is φ = 216821476752.

The previous prime is 252958389499. The next prime is 252958389557. The reversal of 252958389551 is 155983859252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252958389551 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 (252958389557) 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, 18068456390 + ... + 18068456403.

It is an arithmetic number, because the mean of its divisors is an integer number (72273825588).

Almost surely, 2^252958389551 is an apocalyptic number.

252958389551 is a deficient number, since it is larger than the sum of its proper divisors (36136912801).

252958389551 is an equidigital number, since it uses as much as digits as its factorization.

252958389551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36136912800.

The product of its digits is 38880000, while the sum is 62.

The spelling of 252958389551 in words is "two hundred fifty-two billion, nine hundred fifty-eight million, three hundred eighty-nine thousand, five hundred fifty-one".