51104256 has 160 divisors (see below), whose sum is σ = 160406400. Its totient is φ = 14450688.

The previous prime is 51104239. The next prime is 51104257. The reversal of 51104256 is 65240115.

It is a super-2 number, since 2×51104256² = 5223289962627072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (51104257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526800 + ... + 526896.

It is an arithmetic number, because the mean of its divisors is an integer number (1002540).

Almost surely, 2^51104256 is an apocalyptic number.

51104256 is a gapful number since it is divisible by the number (56) 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 51104256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80203200).

51104256 is an abundant number, since it is smaller than the sum of its proper divisors (109302144).

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

51104256 is an frugal number, since it uses more digits than its factorization.

51104256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 51104256 is about 7148.7240819604. The cubic root of 51104256 is about 371.0955016987.

It can be divided in two parts, 51104 and 256, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 51104256 in words is "fifty-one million, one hundred four thousand, two hundred fifty-six".