52689725 has 12 divisors (see below), whose sum is σ = 71275200. Its totient is φ = 38319600.

The previous prime is 52689719. The next prime is 52689727. The reversal of 52689725 is 52798625.

It is not a de Polignac number, because 52689725 - 2⁴ = 52689709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52689727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95525 + ... + 96074.

It is an arithmetic number, because the mean of its divisors is an integer number (5939600).

Almost surely, 2^52689725 is an apocalyptic number.

52689725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52689725 is a deficient number, since it is larger than the sum of its proper divisors (18585475).

52689725 is a wasteful number, since it uses less digits than its factorization.

52689725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191620 (or 191615 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 52689725 is about 7258.7688350023. The cubic root of 52689725 is about 374.8941330783.

Subtracting 52689725 from its reverse (52798625), we obtain a square (108900 = 330²).

The spelling of 52689725 in words is "fifty-two million, six hundred eighty-nine thousand, seven hundred twenty-five".