551423601 has 12 divisors (see below), whose sum is σ = 808389712. Its totient is φ = 362128536.

The previous prime is 551423573. The next prime is 551423651. The reversal of 551423601 is 106324155.

551423601 is a `hidden beast` number, since 5 + 51 + 4 + 2 + 3 + 601 = 666.

It is not a de Polignac number, because 551423601 - 2¹⁰ = 551422577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (551423651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456631 + ... + 457836.

Almost surely, 2^551423601 is an apocalyptic number.

It is an amenable number.

551423601 is a deficient number, since it is larger than the sum of its proper divisors (256966111).

551423601 is a wasteful number, since it uses less digits than its factorization.

551423601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914540 (or 914537 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 551423601 is about 23482.4104597462. The cubic root of 551423601 is about 820.0275625278.

Adding to 551423601 its reverse (106324155), we get a palindrome (657747756).

The spelling of 551423601 in words is "five hundred fifty-one million, four hundred twenty-three thousand, six hundred one".