551525557671 has 96 divisors (see below), whose sum is σ = 944412618240. Its totient is φ = 306422323200.

The previous prime is 551525557669. The next prime is 551525557699. The reversal of 551525557671 is 176755525155.

551525557671 is a `hidden beast` number, since 5 + 5 + 1 + 5 + 25 + 557 + 67 + 1 = 666.

It is not a de Polignac number, because 551525557671 - 2¹ = 551525557669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551525557601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9890115 + ... + 9945723.

It is an arithmetic number, because the mean of its divisors is an integer number (9837631440).

Almost surely, 2^551525557671 is an apocalyptic number.

551525557671 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

551525557671 is a deficient number, since it is larger than the sum of its proper divisors (392887060569).

551525557671 is a wasteful number, since it uses less digits than its factorization.

551525557671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55797 (or 55794 counting only the distinct ones).

The product of its digits is 9187500, while the sum is 54.

The spelling of 551525557671 in words is "five hundred fifty-one billion, five hundred twenty-five million, five hundred fifty-seven thousand, six hundred seventy-one".