51025232002 has 4 divisors (see below), whose sum is σ = 76537848006. Its totient is φ = 25512616000.

The previous prime is 51025231997. The next prime is 51025232021. The reversal of 51025232002 is 20023252015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42066420201 + 8958811801 = 205101^2 + 94651^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12756307999 + ... + 12756308002.

Almost surely, 2^51025232002 is an apocalyptic number.

51025232002 is a deficient number, since it is larger than the sum of its proper divisors (25512616004).

51025232002 is a wasteful number, since it uses less digits than its factorization.

51025232002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25512616003.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 51025232002 its reverse (20023252015), we get a palindrome (71048484017).

The spelling of 51025232002 in words is "fifty-one billion, twenty-five million, two hundred thirty-two thousand, two".