551009338881 has 8 divisors (see below), whose sum is σ = 734917740480. Its totient is φ = 367220248272.

The previous prime is 551009338879. The next prime is 551009338897. The reversal of 551009338881 is 188833900155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551009338881 - 2¹ = 551009338879 is a prime.

It is a super-2 number, since 2×551009338881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551009238881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29816970 + ... + 29835443.

It is an arithmetic number, because the mean of its divisors is an integer number (91864717560).

Almost surely, 2^551009338881 is an apocalyptic number.

It is an amenable number.

551009338881 is a deficient number, since it is larger than the sum of its proper divisors (183908401599).

551009338881 is a wasteful number, since it uses less digits than its factorization.

551009338881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59655495.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 551009338881 in words is "five hundred fifty-one billion, nine million, three hundred thirty-eight thousand, eight hundred eighty-one".