252240353503 has 4 divisors (see below), whose sum is σ = 252296175760. Its totient is φ = 252184531248.

The previous prime is 252240353479. The next prime is 252240353531. The reversal of 252240353503 is 305353042252.

It is a happy number.

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 252240353503 - 2¹³ = 252240345311 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 (252240353203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27904350 + ... + 27913387.

It is an arithmetic number, because the mean of its divisors is an integer number (63074043940).

Almost surely, 2^252240353503 is an apocalyptic number.

252240353503 is a deficient number, since it is larger than the sum of its proper divisors (55822257).

252240353503 is an equidigital number, since it uses as much as digits as its factorization.

252240353503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55822256.

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 252240353503 its reverse (305353042252), we get a palindrome (557593395755).

The spelling of 252240353503 in words is "two hundred fifty-two billion, two hundred forty million, three hundred fifty-three thousand, five hundred three".