51020002 has 8 divisors (see below), whose sum is σ = 83487312. Its totient is φ = 23190900.

The previous prime is 51019999. The next prime is 51020029. The reversal of 51020002 is 20002015.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1159524 + ... + 1159567.

It is an arithmetic number, because the mean of its divisors is an integer number (10435914).

Almost surely, 2^51020002 is an apocalyptic number.

51020002 is a deficient number, since it is larger than the sum of its proper divisors (32467310).

51020002 is a wasteful number, since it uses less digits than its factorization.

51020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319104.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 51020002 is about 7142.8287113720. The cubic root of 51020002 is about 370.8914516437.

Adding to 51020002 its reverse (20002015), we get a palindrome (71022017).

The spelling of 51020002 in words is "fifty-one million, twenty thousand, two".