51535132 has 12 divisors (see below), whose sum is σ = 98385336. Its totient is φ = 23425040.

The previous prime is 51535079. The next prime is 51535181. The reversal of 51535132 is 23153515.

It is a junction number, because it is equal to n+sod(n) for n = 51535097 and 51535106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585583 + ... + 585670.

It is an arithmetic number, because the mean of its divisors is an integer number (8198778).

Almost surely, 2^51535132 is an apocalyptic number.

It is an amenable number.

51535132 is a deficient number, since it is larger than the sum of its proper divisors (46850204).

51535132 is a wasteful number, since it uses less digits than its factorization.

51535132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171268 (or 1171266 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 51535132 is about 7178.7973923214. The cubic root of 51535132 is about 372.1355250604.

Adding to 51535132 its reverse (23153515), we get a palindrome (74688647).

It can be divided in two parts, 5153513 and 2, that added together give a palindrome (5153515).

The spelling of 51535132 in words is "fifty-one million, five hundred thirty-five thousand, one hundred thirty-two".