51205332 has 12 divisors (see below), whose sum is σ = 119479136. Its totient is φ = 17068440.

The previous prime is 51205321. The next prime is 51205379. The reversal of 51205332 is 23350215.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 51205299 and 51205308.

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, 2133544 + ... + 2133567.

Almost surely, 2^51205332 is an apocalyptic number.

It is an amenable number.

51205332 is an abundant number, since it is smaller than the sum of its proper divisors (68273804).

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

51205332 is a wasteful number, since it uses less digits than its factorization.

51205332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267118 (or 4267116 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51205332 is about 7155.7901031263. The cubic root of 51205332 is about 371.3399963206.

Adding to 51205332 its reverse (23350215), we get a palindrome (74555547).

The spelling of 51205332 in words is "fifty-one million, two hundred five thousand, three hundred thirty-two".