501042725 has 6 divisors (see below), whose sum is σ = 621293010. Its totient is φ = 400834160.

The previous prime is 501042709. The next prime is 501042743. The reversal of 501042725 is 527240105.

It can be written as a sum of positive squares in 3 ways, for example, as 2815684 + 498227041 = 1678^2 + 22321^2 .

It is not a de Polignac number, because 501042725 - 2⁴ = 501042709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 501042694 and 501042703.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10020830 + ... + 10020879.

It is an arithmetic number, because the mean of its divisors is an integer number (103548835).

Almost surely, 2^501042725 is an apocalyptic number.

It is an amenable number.

501042725 is a deficient number, since it is larger than the sum of its proper divisors (120250285).

501042725 is a wasteful number, since it uses less digits than its factorization.

501042725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20041719 (or 20041714 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 501042725 is about 22383.9836713665. The cubic root of 501042725 is about 794.2518838058.

The spelling of 501042725 in words is "five hundred one million, forty-two thousand, seven hundred twenty-five".