551774447 has 6 divisors (see below), whose sum is σ = 641860128. Its totient is φ = 472949484.

The previous prime is 551774417. The next prime is 551774449. The reversal of 551774447 is 744477155.

It is not a de Polignac number, because 551774447 - 2⁸ = 551774191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551774398 and 551774407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551774449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5630303 + ... + 5630400.

It is an arithmetic number, because the mean of its divisors is an integer number (106976688).

Almost surely, 2^551774447 is an apocalyptic number.

551774447 is a deficient number, since it is larger than the sum of its proper divisors (90085681).

551774447 is a wasteful number, since it uses less digits than its factorization.

551774447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11260717 (or 11260710 counting only the distinct ones).

The product of its digits is 548800, while the sum is 44.

The square root of 551774447 is about 23489.8796718927. The cubic root of 551774447 is about 820.2014411901.

The spelling of 551774447 in words is "five hundred fifty-one million, seven hundred seventy-four thousand, four hundred forty-seven".