551145444301 has 4 divisors (see below), whose sum is σ = 583565764572. Its totient is φ = 518725124032.

The previous prime is 551145444293. The next prime is 551145444319. The reversal of 551145444301 is 103444541155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 103444541155 = 5 ⋅20688908231.

It can be written as a sum of positive squares in 2 ways, for example, as 171251958276 + 379893486025 = 413826^2 + 616355^2 .

It is a cyclic number.

It is not a de Polignac number, because 551145444301 - 2³ = 551145444293 is a prime.

It is a super-2 number, since 2×551145444301² (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 (551115444301) 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, 16210160110 + ... + 16210160143.

It is an arithmetic number, because the mean of its divisors is an integer number (145891441143).

Almost surely, 2^551145444301 is an apocalyptic number.

It is an amenable number.

551145444301 is a deficient number, since it is larger than the sum of its proper divisors (32420320271).

551145444301 is a wasteful number, since it uses less digits than its factorization.

551145444301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32420320270.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 551145444301 its reverse (103444541155), we get a palindrome (654589985456).

The spelling of 551145444301 in words is "five hundred fifty-one billion, one hundred forty-five million, four hundred forty-four thousand, three hundred one".