505455650451 has 6 divisors (see below), whose sum is σ = 730102606220. Its totient is φ = 336970433628.

The previous prime is 505455650429. The next prime is 505455650459. The reversal of 505455650451 is 154056554505.

It is a happy number.

505455650451 is a `hidden beast` number, since 5 + 0 + 5 + 4 + 556 + 50 + 45 + 1 = 666.

It is not a de Polignac number, because 505455650451 - 2⁹ = 505455649939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505455650397 and 505455650406.

It is not an unprimeable number, because it can be changed into a prime (505455650459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28080869461 + ... + 28080869478.

Almost surely, 2^505455650451 is an apocalyptic number.

505455650451 is a deficient number, since it is larger than the sum of its proper divisors (224646955769).

505455650451 is a wasteful number, since it uses less digits than its factorization.

505455650451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56161738945 (or 56161738942 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

The spelling of 505455650451 in words is "five hundred five billion, four hundred fifty-five million, six hundred fifty thousand, four hundred fifty-one".