51203132 has 6 divisors (see below), whose sum is σ = 89605488. Its totient is φ = 25601564.

The previous prime is 51203123. The next prime is 51203147. The reversal of 51203132 is 23130215.

It is a self number, because there is not a number n which added to its sum of digits gives 51203132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400388 + ... + 6400395.

It is an arithmetic number, because the mean of its divisors is an integer number (14934248).

Almost surely, 2^51203132 is an apocalyptic number.

It is an amenable number.

51203132 is a deficient number, since it is larger than the sum of its proper divisors (38402356).

51203132 is a wasteful number, since it uses less digits than its factorization.

51203132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800787 (or 12800785 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51203132 is about 7155.6363798058. The cubic root of 51203132 is about 371.3346781264.

Adding to 51203132 its reverse (23130215), we get a palindrome (74333347).

The spelling of 51203132 in words is "fifty-one million, two hundred three thousand, one hundred thirty-two".