52390471 has 8 divisors (see below), whose sum is σ = 60072320. Its totient is φ = 44758008.

The previous prime is 52390463. The next prime is 52390487. The reversal of 52390471 is 17409325.

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

It is a cyclic number.

It is not a de Polignac number, because 52390471 - 2³ = 52390463 is a prime.

It is a super-3 number, since 3×52390471³ (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 (52390411) 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, 10041 + ... + 14338.

It is an arithmetic number, because the mean of its divisors is an integer number (7509040).

Almost surely, 2^52390471 is an apocalyptic number.

52390471 is a deficient number, since it is larger than the sum of its proper divisors (7681849).

52390471 is a wasteful number, since it uses less digits than its factorization.

52390471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24693.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 52390471 is about 7238.1262077972. The cubic root of 52390471 is about 374.1830416514.

Adding to 52390471 its reverse (17409325), we get a palindrome (69799796).

The spelling of 52390471 in words is "fifty-two million, three hundred ninety thousand, four hundred seventy-one".