252355551 has 8 divisors (see below), whose sum is σ = 384541824. Its totient is φ = 144203160.

The previous prime is 252355547. The next prime is 252355561. The reversal of 252355551 is 155553252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252355551 - 2² = 252355547 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252355501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008445 + ... + 6008486.

It is an arithmetic number, because the mean of its divisors is an integer number (48067728).

Almost surely, 2^252355551 is an apocalyptic number.

252355551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252355551 is a deficient number, since it is larger than the sum of its proper divisors (132186273).

252355551 is a wasteful number, since it uses less digits than its factorization.

252355551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016941.

The product of its digits is 37500, while the sum is 33.

The square root of 252355551 is about 15885.7027228889. The cubic root of 252355551 is about 631.9328820661.

The spelling of 252355551 in words is "two hundred fifty-two million, three hundred fifty-five thousand, five hundred fifty-one".