51002230 has 16 divisors (see below), whose sum is σ = 92507184. Its totient is φ = 20244640.

The previous prime is 51002221. The next prime is 51002239. The reversal of 51002230 is 3220015.

It is an interprime number because it is at equal distance from previous prime (51002221) and next prime (51002239).

It is a self number, because there is not a number n which added to its sum of digits gives 51002230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51002239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18157 + ... + 20776.

It is an arithmetic number, because the mean of its divisors is an integer number (5781699).

Almost surely, 2^51002230 is an apocalyptic number.

51002230 is a deficient number, since it is larger than the sum of its proper divisors (41504954).

51002230 is a wasteful number, since it uses less digits than its factorization.

51002230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39071.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 51002230 is about 7141.5845580655. The cubic root of 51002230 is about 370.8483819448.

Adding to 51002230 its reverse (3220015), we get a palindrome (54222245).

The spelling of 51002230 in words is "fifty-one million, two thousand, two hundred thirty".