252520117 has 2 divisors, whose sum is σ = 252520118. Its totient is φ = 252520116.

The previous prime is 252520111. The next prime is 252520129. The reversal of 252520117 is 711025252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223024356 + 29495761 = 14934^2 + 5431^2 .

It is a cyclic number.

It is not a de Polignac number, because 252520117 - 2³ = 252520109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252520091 and 252520100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252520111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126260058 + 126260059.

It is an arithmetic number, because the mean of its divisors is an integer number (126260059).

Almost surely, 2^252520117 is an apocalyptic number.

It is an amenable number.

252520117 is a deficient number, since it is larger than the sum of its proper divisors (1).

252520117 is an equidigital number, since it uses as much as digits as its factorization.

252520117 is an odious number, because the sum of its binary digits is odd.

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

The square root of 252520117 is about 15890.8815677419. The cubic root of 252520117 is about 632.0702174894.

Adding to 252520117 its reverse (711025252), we get a palindrome (963545369).

The spelling of 252520117 in words is "two hundred fifty-two million, five hundred twenty thousand, one hundred seventeen".