252503555 has 4 divisors (see below), whose sum is σ = 303004272. Its totient is φ = 202002840.

The previous prime is 252503549. The next prime is 252503557. The reversal of 252503555 is 555305252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252503555 - 2⁶ = 252503491 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (252503557) 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 3 ways as a sum of consecutive naturals, for example, 25250351 + ... + 25250360.

It is an arithmetic number, because the mean of its divisors is an integer number (75751068).

Almost surely, 2^252503555 is an apocalyptic number.

252503555 is a deficient number, since it is larger than the sum of its proper divisors (50500717).

252503555 is an equidigital number, since it uses as much as digits as its factorization.

252503555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50500716.

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 252503555 is about 15890.3604427338. The cubic root of 252503555 is about 632.0563986883.

The spelling of 252503555 in words is "two hundred fifty-two million, five hundred three thousand, five hundred fifty-five".