52864452 has 18 divisors (see below), whose sum is σ = 133629678. Its totient is φ = 17621472.

The previous prime is 52864447. The next prime is 52864459. The reversal of 52864452 is 25446825.

It is a happy number.

52864452 is a `hidden beast` number, since 5 + 2 + 8 + 644 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52794756 + 69696 = 7266^2 + 264^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1468457 = 52864452 / (5 + 2 + 8 + 6 + 4 + 4 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (52864459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734193 + ... + 734264.

It is an arithmetic number, because the mean of its divisors is an integer number (7423871).

Almost surely, 2^52864452 is an apocalyptic number.

It is an amenable number.

52864452 is an abundant number, since it is smaller than the sum of its proper divisors (80765226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52864452 is a wasteful number, since it uses less digits than its factorization.

52864452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468467 (or 1468462 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 52864452 is about 7270.7944545283. The cubic root of 52864452 is about 375.3080774994.

It can be divided in two parts, 528 and 64452, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 52864452 in words is "fifty-two million, eight hundred sixty-four thousand, four hundred fifty-two".