855212494 has 16 divisors (see below), whose sum is σ = 1327943520. Its totient is φ = 412584480.

The previous prime is 855212461. The next prime is 855212503. The reversal of 855212494 is 494212558.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102172 + ... + 110224.

It is an arithmetic number, because the mean of its divisors is an integer number (82996470).

Almost surely, 2^855212494 is an apocalyptic number.

855212494 is a deficient number, since it is larger than the sum of its proper divisors (472731026).

855212494 is a wasteful number, since it uses less digits than its factorization.

855212494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915.

The product of its digits is 115200, while the sum is 40.

The square root of 855212494 is about 29244.0163794237. The cubic root of 855212494 is about 949.2006180343.

The spelling of 855212494 in words is "eight hundred fifty-five million, two hundred twelve thousand, four hundred ninety-four".