875297555521 has 8 divisors (see below), whose sum is σ = 881111516864. Its totient is φ = 869502688560.

The previous prime is 875297555497. The next prime is 875297555563. The reversal of 875297555521 is 125555792578.

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

It is a cyclic number.

It is not a de Polignac number, because 875297555521 - 2¹⁵ = 875297522753 is a prime.

It is a super-2 number, since 2×875297555521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 875297555521.

It is not an unprimeable number, because it can be changed into a prime (875297555221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4681605 + ... + 4864978.

It is an arithmetic number, because the mean of its divisors is an integer number (110138939608).

Almost surely, 2^875297555521 is an apocalyptic number.

It is an amenable number.

875297555521 is a deficient number, since it is larger than the sum of its proper divisors (5813961343).

875297555521 is a wasteful number, since it uses less digits than its factorization.

875297555521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547191.

The product of its digits is 44100000, while the sum is 61.

The spelling of 875297555521 in words is "eight hundred seventy-five billion, two hundred ninety-seven million, five hundred fifty-five thousand, five hundred twenty-one".