252511503 has 8 divisors (see below), whose sum is σ = 351320448. Its totient is φ = 161021784.

The previous prime is 252511499. The next prime is 252511529. The reversal of 252511503 is 305115252.

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 252511503 - 2² = 252511499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252511603) 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, 1829725 + ... + 1829862.

It is an arithmetic number, because the mean of its divisors is an integer number (43915056).

Almost surely, 2^252511503 is an apocalyptic number.

252511503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

252511503 is a deficient number, since it is larger than the sum of its proper divisors (98808945).

252511503 is a wasteful number, since it uses less digits than its factorization.

252511503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659613.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 252511503 is about 15890.6105294919. The cubic root of 252511503 is about 632.0630303197.

Adding to 252511503 its reverse (305115252), we get a palindrome (557626755).

It can be divided in two parts, 2525 and 11503, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 252511503 in words is "two hundred fifty-two million, five hundred eleven thousand, five hundred three".