505265225425 has 6 divisors (see below), whose sum is σ = 626528879558. Its totient is φ = 404212180320.

The previous prime is 505265225393. The next prime is 505265225447. The reversal of 505265225425 is 524522562505.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 773229249 + 504491996176 = 27807^2 + 710276^2 .

It is not a de Polignac number, because 505265225425 - 2⁵ = 505265225393 is a prime.

It is a Duffinian 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, 10105304484 + ... + 10105304533.

Almost surely, 2^505265225425 is an apocalyptic number.

It is an amenable number.

505265225425 is a deficient number, since it is larger than the sum of its proper divisors (121263654133).

505265225425 is a wasteful number, since it uses less digits than its factorization.

505265225425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210609027 (or 20210609022 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 505265225425 in words is "five hundred five billion, two hundred sixty-five million, two hundred twenty-five thousand, four hundred twenty-five".