505551010025 has 12 divisors (see below), whose sum is σ = 626920393872. Its totient is φ = 404416845840.

The previous prime is 505551009961. The next prime is 505551010067. The reversal of 505551010025 is 520010155505.

It is not a de Polignac number, because 505551010025 - 2⁶ = 505551009961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505551010025.

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, 162419 + ... + 1018568.

It is an arithmetic number, because the mean of its divisors is an integer number (52243366156).

Almost surely, 2^505551010025 is an apocalyptic number.

It is an amenable number.

505551010025 is a deficient number, since it is larger than the sum of its proper divisors (121369383847).

505551010025 is a wasteful number, since it uses less digits than its factorization.

505551010025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198120 (or 1198115 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 29.

The spelling of 505551010025 in words is "five hundred five billion, five hundred fifty-one million, ten thousand, twenty-five".