51162418 has 8 divisors (see below), whose sum is σ = 81258012. Its totient is φ = 24076416.

The previous prime is 51162413. The next prime is 51162457. The reversal of 51162418 is 81426115.

It can be written as a sum of positive squares in 2 ways, for example, as 47983329 + 3179089 = 6927^2 + 1783^2 .

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 (51162413) 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, 752355 + ... + 752422.

Almost surely, 2^51162418 is an apocalyptic number.

51162418 is a deficient number, since it is larger than the sum of its proper divisors (30095594).

51162418 is a wasteful number, since it uses less digits than its factorization.

51162418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504796.

The product of its digits is 1920, while the sum is 28.

The square root of 51162418 is about 7152.7909238283. The cubic root of 51162418 is about 371.2362301838.

The spelling of 51162418 in words is "fifty-one million, one hundred sixty-two thousand, four hundred eighteen".