201056856 has 128 divisors (see below), whose sum is σ = 674956800. Its totient is φ = 48199680.

The previous prime is 201056839. The next prime is 201056861. The reversal of 201056856 is 658650102.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19840 + ... + 28208.

It is an arithmetic number, because the mean of its divisors is an integer number (5273100).

Almost surely, 2^201056856 is an apocalyptic number.

201056856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201056856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337478400).

201056856 is an abundant number, since it is smaller than the sum of its proper divisors (473899944).

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

201056856 is a wasteful number, since it uses less digits than its factorization.

201056856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409 (or 8405 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 201056856 is about 14179.4518934972. The cubic root of 201056856 is about 585.8318270886.

The spelling of 201056856 in words is "two hundred one million, fifty-six thousand, eight hundred fifty-six".