252502501 has 4 divisors (see below), whose sum is σ = 252799372. Its totient is φ = 252205632.

The previous prime is 252502463. The next prime is 252502511. The reversal of 252502501 is 105205252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 152522500 + 99980001 = 12350^2 + 9999^2 .

It is a cyclic number.

It is not a de Polignac number, because 252502501 - 2⁷ = 252502373 is a prime.

It is a super-2 number, since 2×252502501² = 127515026022510002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252502511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147156 + ... + 148861.

It is an arithmetic number, because the mean of its divisors is an integer number (63199843).

Almost surely, 2^252502501 is an apocalyptic number.

It is an amenable number.

252502501 is a deficient number, since it is larger than the sum of its proper divisors (296871).

252502501 is an equidigital number, since it uses as much as digits as its factorization.

252502501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296870.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 252502501 is about 15890.3272779386. The cubic root of 252502501 is about 632.0555192441.

Adding to 252502501 its reverse (105205252), we get a palindrome (357707753).

The spelling of 252502501 in words is "two hundred fifty-two million, five hundred two thousand, five hundred one".