252761417 has 4 divisors (see below), whose sum is σ = 252794880. Its totient is φ = 252727956.

The previous prime is 252761401. The next prime is 252761449. The reversal of 252761417 is 714167252.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 252761417 - 2⁴ = 252761401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252701417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 22490.

It is an arithmetic number, because the mean of its divisors is an integer number (63198720).

Almost surely, 2^252761417 is an apocalyptic number.

It is an amenable number.

252761417 is a deficient number, since it is larger than the sum of its proper divisors (33463).

252761417 is a wasteful number, since it uses less digits than its factorization.

252761417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33462.

The product of its digits is 23520, while the sum is 35.

The square root of 252761417 is about 15898.4721592988. The cubic root of 252761417 is about 632.2714819675.

The spelling of 252761417 in words is "two hundred fifty-two million, seven hundred sixty-one thousand, four hundred seventeen".