52140625 has 28 divisors (see below), whose sum is σ = 67499136. Its totient is φ = 40250000.

The previous prime is 52140623. The next prime is 52140631. The reversal of 52140625 is 52604125.

52140625 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 52140625 - 2¹ = 52140623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52140625.

It is not an unprimeable number, because it can be changed into a prime (52140623) 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 27 ways as a sum of consecutive naturals, for example, 734340 + ... + 734410.

Almost surely, 2^52140625 is an apocalyptic number.

It is an amenable number.

52140625 is a deficient number, since it is larger than the sum of its proper divisors (15358511).

52140625 is an frugal number, since it uses more digits than its factorization.

52140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 52140625 is about 7220.8465570181. The cubic root of 52140625 is about 373.5872771805.

The spelling of 52140625 in words is "fifty-two million, one hundred forty thousand, six hundred twenty-five".