252263641 has 4 divisors (see below), whose sum is σ = 288301312. Its totient is φ = 216225972.

The previous prime is 252263603. The next prime is 252263651. The reversal of 252263641 is 146362252.

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.

It is a cyclic number.

It is not a de Polignac number, because 252263641 - 2¹⁹ = 251739353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252263651) 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, 18018825 + ... + 18018838.

It is an arithmetic number, because the mean of its divisors is an integer number (72075328).

Almost surely, 2^252263641 is an apocalyptic number.

It is an amenable number.

252263641 is a deficient number, since it is larger than the sum of its proper divisors (36037671).

252263641 is an equidigital number, since it uses as much as digits as its factorization.

252263641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36037670.

The product of its digits is 17280, while the sum is 31.

The square root of 252263641 is about 15882.8096066156. The cubic root of 252263641 is about 631.8561543387.

The spelling of 252263641 in words is "two hundred fifty-two million, two hundred sixty-three thousand, six hundred forty-one".