52640269 has 8 divisors (see below), whose sum is σ = 58826880. Its totient is φ = 46687200.

The previous prime is 52640221. The next prime is 52640293. The reversal of 52640269 is 96204625.

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 52640269 - 2⁹ = 52639757 is a prime.

It is a super-2 number, since 2×52640269² = 5541995840784722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52640209) 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, 57909 + ... + 58810.

It is an arithmetic number, because the mean of its divisors is an integer number (7353360).

Almost surely, 2^52640269 is an apocalyptic number.

It is an amenable number.

52640269 is a deficient number, since it is larger than the sum of its proper divisors (6186611).

52640269 is a wasteful number, since it uses less digits than its factorization.

52640269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116771.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 52640269 is about 7255.3613969257. The cubic root of 52640269 is about 374.7768011050.

The spelling of 52640269 in words is "fifty-two million, six hundred forty thousand, two hundred sixty-nine".