505455650397 has 12 divisors (see below), whose sum is σ = 730109633500. Its totient is φ = 336967190208.

The previous prime is 505455650353. The next prime is 505455650429. The reversal of 505455650397 is 793056554505.

505455650397 is a `hidden beast` number, since 5 + 0 + 5 + 4 + 556 + 50 + 39 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 367301450916 + 138154199481 = 606054^2 + 371691^2 .

It is not a de Polignac number, because 505455650397 - 2¹⁵ = 505455617629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505455660397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062729 + ... + 1462977.

Almost surely, 2^505455650397 is an apocalyptic number.

It is an amenable number.

505455650397 is a deficient number, since it is larger than the sum of its proper divisors (224653983103).

505455650397 is a wasteful number, since it uses less digits than its factorization.

505455650397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540572 (or 540569 counting only the distinct ones).

The product of its (nonzero) digits is 14175000, while the sum is 54.

The spelling of 505455650397 in words is "five hundred five billion, four hundred fifty-five million, six hundred fifty thousand, three hundred ninety-seven".