252561503 has 8 divisors (see below), whose sum is σ = 273108672. Its totient is φ = 232646656.

The previous prime is 252561497. The next prime is 252561511. The reversal of 252561503 is 305165252.

It is a happy number.

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 252561503 - 2¹⁴ = 252545119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252564503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157250 + ... + 158847.

It is an arithmetic number, because the mean of its divisors is an integer number (34138584).

Almost surely, 2^252561503 is an apocalyptic number.

252561503 is a deficient number, since it is larger than the sum of its proper divisors (20547169).

252561503 is a wasteful number, since it uses less digits than its factorization.

252561503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316161.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 252561503 is about 15892.1837077225. The cubic root of 252561503 is about 632.1047459980.

The spelling of 252561503 in words is "two hundred fifty-two million, five hundred sixty-one thousand, five hundred three".