252192505 has 8 divisors (see below), whose sum is σ = 304168392. Its totient is φ = 200729088.

The previous prime is 252192503. The next prime is 252192511. The reversal of 252192505 is 505291252.

252192505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20757136 + 231435369 = 4556^2 + 15213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252192505 - 2¹ = 252192503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252192503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127032 + ... + 129001.

It is an arithmetic number, because the mean of its divisors is an integer number (38021049).

Almost surely, 2^252192505 is an apocalyptic number.

It is an amenable number.

252192505 is a deficient number, since it is larger than the sum of its proper divisors (51975887).

252192505 is a wasteful number, since it uses less digits than its factorization.

252192505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256235.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 252192505 is about 15880.5700464435. The cubic root of 252192505 is about 631.7967562360.

The spelling of 252192505 in words is "two hundred fifty-two million, one hundred ninety-two thousand, five hundred five".