252201517 has 2 divisors, whose sum is σ = 252201518. Its totient is φ = 252201516.

The previous prime is 252201491. The next prime is 252201527. The reversal of 252201517 is 715102252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250715556 + 1485961 = 15834^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 252201517 - 2²³ = 243812909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252201491 and 252201500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252201527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126100758 + 126100759.

It is an arithmetic number, because the mean of its divisors is an integer number (126100759).

Almost surely, 2^252201517 is an apocalyptic number.

It is an amenable number.

252201517 is a deficient number, since it is larger than the sum of its proper divisors (1).

252201517 is an equidigital number, since it uses as much as digits as its factorization.

252201517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 252201517 is about 15880.8537868718. The cubic root of 252201517 is about 631.8042818159.

Adding to 252201517 its reverse (715102252), we get a palindrome (967303769).

The spelling of 252201517 in words is "two hundred fifty-two million, two hundred one thousand, five hundred seventeen".