51290230 has 32 divisors (see below), whose sum is σ = 96811200. Its totient is φ = 19527552.

The previous prime is 51290227. The next prime is 51290233. The reversal of 51290230 is 3209215.

It is an interprime number because it is at equal distance from previous prime (51290227) and next prime (51290233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51290233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61456 + ... + 62284.

It is an arithmetic number, because the mean of its divisors is an integer number (3025350).

Almost surely, 2^51290230 is an apocalyptic number.

51290230 is a deficient number, since it is larger than the sum of its proper divisors (45520970).

51290230 is a wasteful number, since it uses less digits than its factorization.

51290230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 51290230 is about 7161.7197655312. The cubic root of 51290230 is about 371.5451091771.

Adding to 51290230 its reverse (3209215), we get a palindrome (54499445).

The spelling of 51290230 in words is "fifty-one million, two hundred ninety thousand, two hundred thirty".