855552412 has 72 divisors (see below), whose sum is σ = 1811352816. Its totient is φ = 348384000.

The previous prime is 855552409. The next prime is 855552457. The reversal of 855552412 is 214255558.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4479237 + ... + 4479427.

It is an arithmetic number, because the mean of its divisors is an integer number (25157678).

Almost surely, 2^855552412 is an apocalyptic number.

855552412 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

855552412 is an abundant number, since it is smaller than the sum of its proper divisors (955800404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855552412 is a wasteful number, since it uses less digits than its factorization.

855552412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 258 counting only the distinct ones).

The product of its digits is 80000, while the sum is 37.

The square root of 855552412 is about 29249.8275550472. The cubic root of 855552412 is about 949.3263597417.

The spelling of 855552412 in words is "eight hundred fifty-five million, five hundred fifty-two thousand, four hundred twelve".