551627081 has 4 divisors (see below), whose sum is σ = 551680464. Its totient is φ = 551573700.

The previous prime is 551627077. The next prime is 551627093. The reversal of 551627081 is 180726155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 551627081 - 2² = 551627077 is a prime.

It is a super-2 number, since 2×551627081² = 608584872985161122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551627581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5675 + ... + 33696.

It is an arithmetic number, because the mean of its divisors is an integer number (137920116).

Almost surely, 2^551627081 is an apocalyptic number.

It is an amenable number.

551627081 is a deficient number, since it is larger than the sum of its proper divisors (53383).

551627081 is a wasteful number, since it uses less digits than its factorization.

551627081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53382.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 551627081 is about 23486.7426647460. The cubic root of 551627081 is about 820.1284158393.

The spelling of 551627081 in words is "five hundred fifty-one million, six hundred twenty-seven thousand, eighty-one".