252247501 has 4 divisors (see below), whose sum is σ = 275179104. Its totient is φ = 229315900.

The previous prime is 252247483. The next prime is 252247507. The reversal of 252247501 is 105742252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 252247501 - 2⁵ = 252247469 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 252247501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252247507) 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 3 ways as a sum of consecutive naturals, for example, 11465785 + ... + 11465806.

It is an arithmetic number, because the mean of its divisors is an integer number (68794776).

Almost surely, 2^252247501 is an apocalyptic number.

It is an amenable number.

252247501 is a deficient number, since it is larger than the sum of its proper divisors (22931603).

252247501 is a wasteful number, since it uses less digits than its factorization.

252247501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22931602.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 252247501 is about 15882.3015019864. The cubic root of 252247501 is about 631.8426785219.

Adding to 252247501 its reverse (105742252), we get a palindrome (357989753).

The spelling of 252247501 in words is "two hundred fifty-two million, two hundred forty-seven thousand, five hundred one".