252942481 has 8 divisors (see below), whose sum is σ = 278670528. Its totient is φ = 227670000.

The previous prime is 252942479. The next prime is 252942491. The reversal of 252942481 is 184249252.

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

It is a cyclic number.

It is not a de Polignac number, because 252942481 - 2¹ = 252942479 is a prime.

It is a super-2 number, since 2×252942481² = 127959797388870722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252942481.

It is not an unprimeable number, because it can be changed into a prime (252942451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112725 + ... + 114946.

It is an arithmetic number, because the mean of its divisors is an integer number (34833816).

Almost surely, 2^252942481 is an apocalyptic number.

It is an amenable number.

252942481 is a deficient number, since it is larger than the sum of its proper divisors (25728047).

252942481 is a wasteful number, since it uses less digits than its factorization.

252942481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227783.

The product of its digits is 46080, while the sum is 37.

The square root of 252942481 is about 15904.1655235350. The cubic root of 252942481 is about 632.4224204556.

The spelling of 252942481 in words is "two hundred fifty-two million, nine hundred forty-two thousand, four hundred eighty-one".