551722570217 has 12 divisors (see below), whose sum is σ = 682774171200. Its totient is φ = 436527746928.

The previous prime is 551722570213. The next prime is 551722570249. The reversal of 551722570217 is 712075227155.

It is a happy number.

It is not a de Polignac number, because 551722570217 - 2² = 551722570213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551722570213) 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, 233186717 + ... + 233189082.

It is an arithmetic number, because the mean of its divisors is an integer number (56897847600).

Almost surely, 2^551722570217 is an apocalyptic number.

It is an amenable number.

551722570217 is a deficient number, since it is larger than the sum of its proper divisors (131051600983).

551722570217 is a wasteful number, since it uses less digits than its factorization.

551722570217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466375832 (or 466375819 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 44.

The spelling of 551722570217 in words is "five hundred fifty-one billion, seven hundred twenty-two million, five hundred seventy thousand, two hundred seventeen".