52528471 has 4 divisors (see below), whose sum is σ = 52669672. Its totient is φ = 52387272.

The previous prime is 52528439. The next prime is 52528501. The reversal of 52528471 is 17482525.

It is a happy number.

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 52528471 - 2⁵ = 52528439 is a prime.

It is a super-3 number, since 3×52528471³ (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 (52528171) 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, 70041 + ... + 70786.

It is an arithmetic number, because the mean of its divisors is an integer number (13167418).

Almost surely, 2^52528471 is an apocalyptic number.

52528471 is a deficient number, since it is larger than the sum of its proper divisors (141201).

52528471 is a wasteful number, since it uses less digits than its factorization.

52528471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141200.

The product of its digits is 22400, while the sum is 34.

The square root of 52528471 is about 7247.6527924563. The cubic root of 52528471 is about 374.5112946481.

The spelling of 52528471 in words is "fifty-two million, five hundred twenty-eight thousand, four hundred seventy-one".