551315440145053 has 4 divisors (see below), whose sum is σ = 551318679593500. Its totient is φ = 551312200696608.

The previous prime is 551315440145021. The next prime is 551315440145153. The reversal of 551315440145053 is 350541044513155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 358516161237529 + 192799278907524 = 18934523^2 + 13885218^2 .

It is a cyclic number.

It is not a de Polignac number, because 551315440145053 - 2⁵ = 551315440145021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551315440144994 and 551315440145012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551315440145153) 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, 1619468928 + ... + 1619809321.

It is an arithmetic number, because the mean of its divisors is an integer number (137829669898375).

Almost surely, 2^{551315440145053} is an apocalyptic number.

It is an amenable number.

551315440145053 is a deficient number, since it is larger than the sum of its proper divisors (3239448447).

551315440145053 is a wasteful number, since it uses less digits than its factorization.

551315440145053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239448446.

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 551315440145053 in words is "five hundred fifty-one trillion, three hundred fifteen billion, four hundred forty million, one hundred forty-five thousand, fifty-three".