52581463 has 4 divisors (see below), whose sum is σ = 57361608. Its totient is φ = 47801320.

The previous prime is 52581461. The next prime is 52581481. The reversal of 52581463 is 36418525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52581463 - 2¹ = 52581461 is a prime.

It is a super-3 number, since 3×52581463³ (a number of 24 digits) contains 333 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 (52581461) 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, 2390056 + ... + 2390077.

It is an arithmetic number, because the mean of its divisors is an integer number (14340402).

Almost surely, 2^52581463 is an apocalyptic number.

52581463 is a deficient number, since it is larger than the sum of its proper divisors (4780145).

52581463 is a wasteful number, since it uses less digits than its factorization.

52581463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780144.

The product of its digits is 28800, while the sum is 34.

The square root of 52581463 is about 7251.3076751714. The cubic root of 52581463 is about 374.6371910249.

Adding to 52581463 its reverse (36418525), we get a palindrome (88999988).

The spelling of 52581463 in words is "fifty-two million, five hundred eighty-one thousand, four hundred sixty-three".