51481182 has 16 divisors (see below), whose sum is σ = 103223952. Its totient is φ = 17116800.

The previous prime is 51481181. The next prime is 51481187. The reversal of 51481182 is 28118415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51481181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8293 + ... + 13104.

It is an arithmetic number, because the mean of its divisors is an integer number (6451497).

Almost surely, 2^51481182 is an apocalyptic number.

51481182 is an abundant number, since it is smaller than the sum of its proper divisors (51742770).

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

51481182 is a wasteful number, since it uses less digits than its factorization.

51481182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21803.

The product of its digits is 2560, while the sum is 30.

The square root of 51481182 is about 7175.0388152260. The cubic root of 51481182 is about 372.0056219523.

Adding to 51481182 its reverse (28118415), we get a palindrome (79599597).

The spelling of 51481182 in words is "fifty-one million, four hundred eighty-one thousand, one hundred eighty-two".