51019344 has 30 divisors (see below), whose sum is σ = 142783706. Its totient is φ = 17006400.

The previous prime is 51019343. The next prime is 51019349. The reversal of 51019344 is 44391015.

It can be written as a sum of positive squares in only one way, i.e., 43401744 + 7617600 = 6588^2 + 2760^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51019343) 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, 177007 + ... + 177294.

Almost surely, 2^51019344 is an apocalyptic number.

It is an amenable number.

51019344 is an abundant number, since it is smaller than the sum of its proper divisors (91764362).

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

51019344 is a wasteful number, since it uses less digits than its factorization.

51019344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354315 (or 354306 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51019344 is about 7142.7826510401. The cubic root of 51019344 is about 370.8898571866.

The spelling of 51019344 in words is "fifty-one million, nineteen thousand, three hundred forty-four".