51456846 has 64 divisors (see below), whose sum is σ = 123379200. Its totient is φ = 13996416.

The previous prime is 51456833. The next prime is 51456857. The reversal of 51456846 is 64865415.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100840 + ... + 101348.

It is an arithmetic number, because the mean of its divisors is an integer number (1927800).

Almost surely, 2^51456846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51456846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61689600).

51456846 is an abundant number, since it is smaller than the sum of its proper divisors (71922354).

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

51456846 is a wasteful number, since it uses less digits than its factorization.

51456846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its digits is 115200, while the sum is 39.

The square root of 51456846 is about 7173.3427354337. The cubic root of 51456846 is about 371.9469949915.

The spelling of 51456846 in words is "fifty-one million, four hundred fifty-six thousand, eight hundred forty-six".