551411431 has 4 divisors (see below), whose sum is σ = 553884352. Its totient is φ = 548938512.

The previous prime is 551411387. The next prime is 551411447. The reversal of 551411431 is 134114155.

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

It is a cyclic number.

It is not a de Polignac number, because 551411431 - 2²¹ = 549314279 is a prime.

It is a super-2 number, since 2×551411431² = 608109132474935522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551411396 and 551411405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551481431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236126 + ... + 1236571.

It is an arithmetic number, because the mean of its divisors is an integer number (138471088).

Almost surely, 2^551411431 is an apocalyptic number.

551411431 is a deficient number, since it is larger than the sum of its proper divisors (2472921).

551411431 is a wasteful number, since it uses less digits than its factorization.

551411431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472920.

The product of its digits is 1200, while the sum is 25.

The square root of 551411431 is about 23482.1513281897. The cubic root of 551411431 is about 820.0215297738.

Adding to 551411431 its reverse (134114155), we get a palindrome (685525586).

The spelling of 551411431 in words is "five hundred fifty-one million, four hundred eleven thousand, four hundred thirty-one".