252561351 has 8 divisors (see below), whose sum is σ = 384855424. Its totient is φ = 144320760.

The previous prime is 252561349. The next prime is 252561383. The reversal of 252561351 is 153165252.

It is a happy number.

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

It is not a de Polignac number, because 252561351 - 2¹ = 252561349 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 (252561311) 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, 6013345 + ... + 6013386.

It is an arithmetic number, because the mean of its divisors is an integer number (48106928).

Almost surely, 2^252561351 is an apocalyptic number.

252561351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252561351 is a deficient number, since it is larger than the sum of its proper divisors (132294073).

252561351 is a wasteful number, since it uses less digits than its factorization.

252561351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026741.

The product of its digits is 9000, while the sum is 30.

The square root of 252561351 is about 15892.1789254967. The cubic root of 252561351 is about 632.1046191906.

The spelling of 252561351 in words is "two hundred fifty-two million, five hundred sixty-one thousand, three hundred fifty-one".