51440162 has 8 divisors (see below), whose sum is σ = 77208492. Its totient is φ = 25704000.

The previous prime is 51440161. The next prime is 51440173. The reversal of 51440162 is 26104415.

It can be written as a sum of positive squares in 2 ways, for example, as 35271721 + 16168441 = 5939^2 + 4021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51440161) 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, 3539 + ... + 10742.

Almost surely, 2^51440162 is an apocalyptic number.

51440162 is a deficient number, since it is larger than the sum of its proper divisors (25768330).

51440162 is a wasteful number, since it uses less digits than its factorization.

51440162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 51440162 is about 7172.1797244631. The cubic root of 51440162 is about 371.9067915009.

Adding to 51440162 its reverse (26104415), we get a palindrome (77544577).

The spelling of 51440162 in words is "fifty-one million, four hundred forty thousand, one hundred sixty-two".