812055455 has 8 divisors (see below), whose sum is σ = 976470432. Its totient is φ = 648308448.

The previous prime is 812055451. The next prime is 812055463. The reversal of 812055455 is 554550218.

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 812055455 - 2² = 812055451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812055451) 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, 164312 + ... + 169181.

It is an arithmetic number, because the mean of its divisors is an integer number (122058804).

Almost surely, 2^812055455 is an apocalyptic number.

812055455 is a deficient number, since it is larger than the sum of its proper divisors (164414977).

812055455 is a wasteful number, since it uses less digits than its factorization.

812055455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333985.

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 812055455 is about 28496.5867254308. The cubic root of 812055455 is about 932.9575767041.

The spelling of 812055455 in words is "eight hundred twelve million, fifty-five thousand, four hundred fifty-five".