855497012 has 12 divisors (see below), whose sum is σ = 1498170240. Its totient is φ = 427448376.

The previous prime is 855497003. The next prime is 855497033. The reversal of 855497012 is 210794558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68558 + ... + 80069.

It is an arithmetic number, because the mean of its divisors is an integer number (124847520).

Almost surely, 2^855497012 is an apocalyptic number.

It is an amenable number.

855497012 is a deficient number, since it is larger than the sum of its proper divisors (642673228).

855497012 is a wasteful number, since it uses less digits than its factorization.

855497012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150070 (or 150068 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 855497012 is about 29248.8805255859. The cubic root of 855497012 is about 949.3058685695.

The spelling of 855497012 in words is "eight hundred fifty-five million, four hundred ninety-seven thousand, twelve".