505351406101 has 4 divisors (see below), whose sum is σ = 505812073932. Its totient is φ = 504890738272.

The previous prime is 505351406099. The next prime is 505351406137. The reversal of 505351406101 is 101604153505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101604153505 = 5 ⋅20320830701.

It can be written as a sum of positive squares in 2 ways, for example, as 59841879876 + 445509526225 = 244626^2 + 667465^2 .

It is a cyclic number.

It is not a de Polignac number, because 505351406101 - 2¹ = 505351406099 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 (505351406191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230332270 + ... + 230334463.

It is an arithmetic number, because the mean of its divisors is an integer number (126453018483).

Almost surely, 2^505351406101 is an apocalyptic number.

It is an amenable number.

505351406101 is a deficient number, since it is larger than the sum of its proper divisors (460667831).

505351406101 is a wasteful number, since it uses less digits than its factorization.

505351406101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460667830.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 505351406101 its reverse (101604153505), we get a palindrome (606955559606).

The spelling of 505351406101 in words is "five hundred five billion, three hundred fifty-one million, four hundred six thousand, one hundred one".