505551403045 has 8 divisors (see below), whose sum is σ = 653327967096. Its totient is φ = 373330266816.

The previous prime is 505551403037. The next prime is 505551403073. The reversal of 505551403045 is 540304155505.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27929428641 + 477621974404 = 167121^2 + 691102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505551403045 - 2³ = 505551403037 is a prime.

It is a super-2 number, since 2×505551403045² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505551402995 and 505551403013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888856882 + ... + 3888857011.

It is an arithmetic number, because the mean of its divisors is an integer number (81665995887).

Almost surely, 2^505551403045 is an apocalyptic number.

It is an amenable number.

505551403045 is a deficient number, since it is larger than the sum of its proper divisors (147776564051).

505551403045 is a wasteful number, since it uses less digits than its factorization.

505551403045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7777713911.

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 505551403045 in words is "five hundred five billion, five hundred fifty-one million, four hundred three thousand, forty-five".