51065344 has 40 divisors (see below), whose sum is σ = 111318768. Its totient is φ = 23208960.

The previous prime is 51065327. The next prime is 51065347. The reversal of 51065344 is 44356015.

It is not an unprimeable number, because it can be changed into a prime (51065347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099 + ... + 10165.

Almost surely, 2^51065344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51065344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55659384).

51065344 is an abundant number, since it is smaller than the sum of its proper divisors (60253424).

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

51065344 is an equidigital number, since it uses as much as digits as its factorization.

51065344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9096 (or 9080 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 51065344 is about 7146.0019591377. The cubic root of 51065344 is about 371.0012907931.

Subtracting from 51065344 its sum of digits (28), we obtain a square (51065316 = 7146²).

The spelling of 51065344 in words is "fifty-one million, sixty-five thousand, three hundred forty-four".