551355451 has 4 divisors (see below), whose sum is σ = 551410000. Its totient is φ = 551300904.

The previous prime is 551355437. The next prime is 551355521. The reversal of 551355451 is 154553155.

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.

It is a cyclic number.

It is not a de Polignac number, because 551355451 - 2²⁵ = 517801019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551355401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7176 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (137852500).

Almost surely, 2^551355451 is an apocalyptic number.

551355451 is a deficient number, since it is larger than the sum of its proper divisors (54549).

551355451 is a wasteful number, since it uses less digits than its factorization.

551355451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54548.

The product of its digits is 37500, while the sum is 34.

The square root of 551355451 is about 23480.9593287838. The cubic root of 551355451 is about 819.9937789534.

The spelling of 551355451 in words is "five hundred fifty-one million, three hundred fifty-five thousand, four hundred fifty-one".