551411401 has 4 divisors (see below), whose sum is σ = 551467972. Its totient is φ = 551354832.

The previous prime is 551411387. The next prime is 551411447. The reversal of 551411401 is 104114155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104114155 = 5 ⋅20822831.

It can be written as a sum of positive squares in 2 ways, for example, as 467597376 + 83814025 = 21624^2 + 9155^2 .

It is a cyclic number.

It is not a de Polignac number, because 551411401 - 2²⁹ = 14540489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551411101) 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, 9510 + ... + 34543.

It is an arithmetic number, because the mean of its divisors is an integer number (137866993).

Almost surely, 2^551411401 is an apocalyptic number.

It is an amenable number.

551411401 is a deficient number, since it is larger than the sum of its proper divisors (56571).

551411401 is a wasteful number, since it uses less digits than its factorization.

551411401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56570.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 551411401 is about 23482.1506894066. The cubic root of 551411401 is about 820.0215149025.

Adding to 551411401 its reverse (104114155), we get a palindrome (655525556).

The spelling of 551411401 in words is "five hundred fifty-one million, four hundred eleven thousand, four hundred one".