52540071 has 32 divisors (see below), whose sum is σ = 75018240. Its totient is φ = 32659200.

The previous prime is 52540063. The next prime is 52540091. The reversal of 52540071 is 17004525.

52540071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52540071 - 2³ = 52540063 is a prime.

It is a super-3 number, since 3×52540071³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540001) 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 31 ways as a sum of consecutive naturals, for example, 481965 + ... + 482073.

It is an arithmetic number, because the mean of its divisors is an integer number (2344320).

Almost surely, 2^52540071 is an apocalyptic number.

52540071 is a deficient number, since it is larger than the sum of its proper divisors (22478169).

52540071 is a wasteful number, since it uses less digits than its factorization.

52540071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 52540071 is about 7248.4530073665. The cubic root of 52540071 is about 374.5388607228.

Adding to 52540071 its reverse (17004525), we get a palindrome (69544596).

The spelling of 52540071 in words is "fifty-two million, five hundred forty thousand, seventy-one".