828255551 has 8 divisors (see below), whose sum is σ = 874857984. Its totient is φ = 782895960.

The previous prime is 828255523. The next prime is 828255559. The reversal of 828255551 is 155552828.

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 828255551 - 2¹⁰ = 828254527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 828255499 and 828255508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828255559) 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, 309341 + ... + 312006.

It is an arithmetic number, because the mean of its divisors is an integer number (109357248).

Almost surely, 2^828255551 is an apocalyptic number.

828255551 is a deficient number, since it is larger than the sum of its proper divisors (46602433).

828255551 is a wasteful number, since it uses less digits than its factorization.

828255551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621421.

The product of its digits is 160000, while the sum is 41.

The square root of 828255551 is about 28779.4293028892. The cubic root of 828255551 is about 939.1207830679.

The spelling of 828255551 in words is "eight hundred twenty-eight million, two hundred fifty-five thousand, five hundred fifty-one".