497557528551 has 16 divisors (see below), whose sum is σ = 744278795520. Its totient is φ = 328484580120.

The previous prime is 497557528549. The next prime is 497557528597. The reversal of 497557528551 is 155825755794.

497557528551 is a `hidden beast` number, since 4 + 9 + 7 + 5 + 5 + 75 + 2 + 8 + 551 = 666.

It is not a de Polignac number, because 497557528551 - 2¹ = 497557528549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497557528511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89453805 + ... + 89459366.

It is an arithmetic number, because the mean of its divisors is an integer number (46517424720).

Almost surely, 2^497557528551 is an apocalyptic number.

497557528551 is a deficient number, since it is larger than the sum of its proper divisors (246721266969).

497557528551 is a wasteful number, since it uses less digits than its factorization.

497557528551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178913283 (or 178913277 counting only the distinct ones).

The product of its digits is 88200000, while the sum is 63.

The spelling of 497557528551 in words is "four hundred ninety-seven billion, five hundred fifty-seven million, five hundred twenty-eight thousand, five hundred fifty-one".