505260477 has 8 divisors (see below), whose sum is σ = 748534080. Its totient is φ = 336840300.

The previous prime is 505260473. The next prime is 505260491. The reversal of 505260477 is 774062505.

It is not a de Polignac number, because 505260477 - 2² = 505260473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505260473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9356649 + ... + 9356702.

It is an arithmetic number, because the mean of its divisors is an integer number (93566760).

Almost surely, 2^505260477 is an apocalyptic number.

It is an amenable number.

505260477 is a deficient number, since it is larger than the sum of its proper divisors (243273603).

505260477 is a wasteful number, since it uses less digits than its factorization.

505260477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713360 (or 18713354 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 505260477 is about 22477.9998442922. Note that the first 3 decimals coincide. The cubic root of 505260477 is about 796.4743165420.

The spelling of 505260477 in words is "five hundred five million, two hundred sixty thousand, four hundred seventy-seven".