51474132 has 18 divisors (see below), whose sum is σ = 130115258. Its totient is φ = 17158032.

The previous prime is 51474121. The next prime is 51474133. The reversal of 51474132 is 23147415.

51474132 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 only one way, i.e., 30074256 + 21399876 = 5484^2 + 4626^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 51474096 and 51474105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51474133) 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 5 ways as a sum of consecutive naturals, for example, 714883 + ... + 714954.

Almost surely, 2^51474132 is an apocalyptic number.

It is an amenable number.

51474132 is an abundant number, since it is smaller than the sum of its proper divisors (78641126).

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

51474132 is a wasteful number, since it uses less digits than its factorization.

51474132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429847 (or 1429842 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 51474132 is about 7174.5475118644. The cubic root of 51474132 is about 371.9886399583.

It can be divided in two parts, 5147413 and 2, that added together give a palindrome (5147415).

The spelling of 51474132 in words is "fifty-one million, four hundred seventy-four thousand, one hundred thirty-two".