806102255531 has 4 divisors (see below), whose sum is σ = 806757092064. Its totient is φ = 805447419000.

The previous prime is 806102255513. The next prime is 806102255537. The reversal of 806102255531 is 135552201608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 806102255531 - 2³⁸ = 531224348587 is a prime.

It is a super-2 number, since 2×806102255531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806102255537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327416420 + ... + 327418881.

It is an arithmetic number, because the mean of its divisors is an integer number (201689273016).

Almost surely, 2^806102255531 is an apocalyptic number.

806102255531 is a deficient number, since it is larger than the sum of its proper divisors (654836533).

806102255531 is a wasteful number, since it uses less digits than its factorization.

806102255531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654836532.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 806102255531 in words is "eight hundred six billion, one hundred two million, two hundred fifty-five thousand, five hundred thirty-one".