252780503 has 6 divisors (see below), whose sum is σ = 266785344. Its totient is φ = 239475924.

The previous prime is 252780499. The next prime is 252780527. The reversal of 252780503 is 305087252.

It is not a de Polignac number, because 252780503 - 2² = 252780499 is a prime.

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 252780503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252780533) 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 5 ways as a sum of consecutive naturals, for example, 349751 + ... + 350472.

It is an arithmetic number, because the mean of its divisors is an integer number (44464224).

Almost surely, 2^252780503 is an apocalyptic number.

252780503 is a deficient number, since it is larger than the sum of its proper divisors (14004841).

252780503 is an equidigital number, since it uses as much as digits as its factorization.

252780503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700261 (or 700242 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 252780503 is about 15899.0723943254. The cubic root of 252780503 is about 632.2873958280.

The spelling of 252780503 in words is "two hundred fifty-two million, seven hundred eighty thousand, five hundred three".