505657110231 has 48 divisors (see below), whose sum is σ = 899232681984. Its totient is φ = 266635167552.

The previous prime is 505657110199. The next prime is 505657110239. The reversal of 505657110231 is 132011756505.

It is a happy number.

505657110231 is a `hidden beast` number, since 5 + 0 + 56 + 571 + 1 + 0 + 2 + 31 = 666.

It is not a de Polignac number, because 505657110231 - 2⁵ = 505657110199 is a prime.

It is a super-2 number, since 2×505657110231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505657110239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2513290 + ... + 2707016.

It is an arithmetic number, because the mean of its divisors is an integer number (18734014208).

Almost surely, 2^505657110231 is an apocalyptic number.

505657110231 is a deficient number, since it is larger than the sum of its proper divisors (393575571753).

505657110231 is a wasteful number, since it uses less digits than its factorization.

505657110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196940 (or 196937 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

Adding to 505657110231 its reverse (132011756505), we get a palindrome (637668866736).

The spelling of 505657110231 in words is "five hundred five billion, six hundred fifty-seven million, one hundred ten thousand, two hundred thirty-one".