52581471 has 4 divisors (see below), whose sum is σ = 70108632. Its totient is φ = 35054312.

The previous prime is 52581461. The next prime is 52581481. The reversal of 52581471 is 17418525.

52581471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (52581461) and next prime (52581481).

It is a cyclic number.

It is not a de Polignac number, because 52581471 - 2⁵ = 52581439 is a prime.

It is a super-3 number, since 3×52581471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52581421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8763576 + ... + 8763581.

It is an arithmetic number, because the mean of its divisors is an integer number (17527158).

Almost surely, 2^52581471 is an apocalyptic number.

52581471 is a deficient number, since it is larger than the sum of its proper divisors (17527161).

52581471 is a wasteful number, since it uses less digits than its factorization.

52581471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17527160.

The product of its digits is 11200, while the sum is 33.

The square root of 52581471 is about 7251.3082267960. The cubic root of 52581471 is about 374.6372100246.

Adding to 52581471 its reverse (17418525), we get a palindrome (69999996).

The spelling of 52581471 in words is "fifty-two million, five hundred eighty-one thousand, four hundred seventy-one".