503042655025 has 9 divisors (see below), whose sum is σ = 623777289643. Its totient is φ = 402431287000.

The previous prime is 503042655019. The next prime is 503042655029. The reversal of 503042655025 is 520556240305.

The square root of 503042655025 is 709255.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 181095355809 + 321947299216 = 425553^2 + 567404^2 .

It is not a de Polignac number, because 503042655025 - 2²³ = 503034266417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503042655029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3475350 + ... + 3617200.

Almost surely, 2^503042655025 is an apocalyptic number.

503042655025 is the 709255-th square number.

503042655025 is the 354628-th centered octagonal number.

It is an amenable number.

503042655025 is a deficient number, since it is larger than the sum of its proper divisors (120734634618).

503042655025 is an frugal number, since it uses more digits than its factorization.

503042655025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283712 (or 141856 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 503042655025 in words is "five hundred three billion, forty-two million, six hundred fifty-five thousand, twenty-five".