52581449 has 8 divisors (see below), whose sum is σ = 53628000. Its totient is φ = 51540192.

The previous prime is 52581443. The next prime is 52581457. The reversal of 52581449 is 94418525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52581449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52581443) 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, 23042 + ... + 25220.

It is an arithmetic number, because the mean of its divisors is an integer number (6703500).

Almost surely, 2^52581449 is an apocalyptic number.

52581449 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

52581449 is a deficient number, since it is larger than the sum of its proper divisors (1046551).

52581449 is a wasteful number, since it uses less digits than its factorization.

52581449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647.

The product of its digits is 57600, while the sum is 38.

The square root of 52581449 is about 7251.3067098282. The cubic root of 52581449 is about 374.6371577754.

The spelling of 52581449 in words is "fifty-two million, five hundred eighty-one thousand, four hundred forty-nine".