52142505 has 16 divisors (see below), whose sum is σ = 85204224. Its totient is φ = 27217280.

The previous prime is 52142459. The next prime is 52142533. The reversal of 52142505 is 50524125.

It is a happy number.

52142505 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 52142505 - 2⁸ = 52142249 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36276 + ... + 37685.

It is an arithmetic number, because the mean of its divisors is an integer number (5325264).

Almost surely, 2^52142505 is an apocalyptic number.

It is an amenable number.

52142505 is a deficient number, since it is larger than the sum of its proper divisors (33061719).

52142505 is a wasteful number, since it uses less digits than its factorization.

52142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74016.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 52142505 is about 7220.9767344868. The cubic root of 52142505 is about 373.5917671895.

The spelling of 52142505 in words is "fifty-two million, one hundred forty-two thousand, five hundred five".