51466856 has 24 divisors (see below), whose sum is σ = 112256370. Its totient is φ = 22057056.

The previous prime is 51466853. The next prime is 51466897. The reversal of 51466856 is 65866415.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34409956 + 17056900 = 5866^2 + 4130^2 .

It is not an unprimeable number, because it can be changed into a prime (51466853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65255 + ... + 66038.

Almost surely, 2^51466856 is an apocalyptic number.

51466856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51466856 is an abundant number, since it is smaller than the sum of its proper divisors (60789514).

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

51466856 is a wasteful number, since it uses less digits than its factorization.

51466856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131313 (or 131302 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 51466856 is about 7174.0404236386. The cubic root of 51466856 is about 371.9711119510.

The spelling of 51466856 in words is "fifty-one million, four hundred sixty-six thousand, eight hundred fifty-six".