51132274 has 16 divisors (see below), whose sum is σ = 78666840. Its totient is φ = 24917760.

The previous prime is 51132271. The next prime is 51132293. The reversal of 51132274 is 47223115.

It is a happy number.

51132274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8791225 + 42341049 = 2965^2 + 6507^2 .

It is a super-2 number, since 2×51132274² = 5229018888822152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11932 + ... + 15640.

Almost surely, 2^51132274 is an apocalyptic number.

51132274 is a deficient number, since it is larger than the sum of its proper divisors (27534566).

51132274 is a wasteful number, since it uses less digits than its factorization.

51132274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885.

The product of its digits is 1680, while the sum is 25.

The square root of 51132274 is about 7150.6834638376. The cubic root of 51132274 is about 371.1633072335.

Adding to 51132274 its reverse (47223115), we get a palindrome (98355389).

The spelling of 51132274 in words is "fifty-one million, one hundred thirty-two thousand, two hundred seventy-four".