52143725 has 12 divisors (see below), whose sum is σ = 64764084. Its totient is φ = 41646720.

The previous prime is 52143703. The next prime is 52143731. The reversal of 52143725 is 52734125.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1406596 + 50737129 = 1186^2 + 7123^2 .

It is not a de Polignac number, because 52143725 - 2¹⁶ = 52078189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18617 + ... + 21233.

It is an arithmetic number, because the mean of its divisors is an integer number (5397007).

Almost surely, 2^52143725 is an apocalyptic number.

It is an amenable number.

52143725 is a deficient number, since it is larger than the sum of its proper divisors (12620359).

52143725 is a wasteful number, since it uses less digits than its factorization.

52143725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424 (or 3419 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 52143725 is about 7221.0612100992. The cubic root of 52143725 is about 373.5946808611.

The spelling of 52143725 in words is "fifty-two million, one hundred forty-three thousand, seven hundred twenty-five".