505008425 has 6 divisors (see below), whose sum is σ = 626210478. Its totient is φ = 404006720.

The previous prime is 505008419. The next prime is 505008431. The reversal of 505008425 is 524800505.

It is an interprime number because it is at equal distance from previous prime (505008419) and next prime (505008431).

It can be written as a sum of positive squares in 3 ways, for example, as 110271001 + 394737424 = 10501^2 + 19868^2 .

It is a de Polignac number, because none of the positive numbers 2^k-505008425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10100144 + ... + 10100193.

It is an arithmetic number, because the mean of its divisors is an integer number (104368413).

Almost surely, 2^505008425 is an apocalyptic number.

It is an amenable number.

505008425 is a deficient number, since it is larger than the sum of its proper divisors (121202053).

505008425 is a wasteful number, since it uses less digits than its factorization.

505008425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200347 (or 20200342 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 505008425 is about 22472.3925072521. The cubic root of 505008425 is about 796.3418526314.

The spelling of 505008425 in words is "five hundred five million, eight thousand, four hundred twenty-five".