505230050657 has 4 divisors (see below), whose sum is σ = 505584102576. Its totient is φ = 504875998740.

The previous prime is 505230050653. The next prime is 505230050711. The reversal of 505230050657 is 756050032505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756050032505 = 5 ⋅151210006501.

It is a cyclic number.

It is not a de Polignac number, because 505230050657 - 2² = 505230050653 is a prime.

It is a super-2 number, since 2×505230050657² (a number of 24 digits) contains 22 as substring.

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 505230050657.

It is not an unprimeable number, because it can be changed into a prime (505230050653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177023819 + ... + 177026672.

It is an arithmetic number, because the mean of its divisors is an integer number (126396025644).

Almost surely, 2^505230050657 is an apocalyptic number.

It is an amenable number.

505230050657 is a deficient number, since it is larger than the sum of its proper divisors (354051919).

505230050657 is a wasteful number, since it uses less digits than its factorization.

505230050657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354051918.

The product of its (nonzero) digits is 157500, while the sum is 38.

The spelling of 505230050657 in words is "five hundred five billion, two hundred thirty million, fifty thousand, six hundred fifty-seven".