51230630 has 32 divisors (see below), whose sum is σ = 102947328. Its totient is φ = 18194400.

The previous prime is 51230609. The next prime is 51230651. The reversal of 51230630 is 3603215.

It is an interprime number because it is at equal distance from previous prime (51230609) and next prime (51230651).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (3217104).

Almost surely, 2^51230630 is an apocalyptic number.

51230630 is an abundant number, since it is smaller than the sum of its proper divisors (51716698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51230630 is a wasteful number, since it uses less digits than its factorization.

51230630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10892.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 51230630 is about 7157.5575443024. The cubic root of 51230630 is about 371.4011397746.

Adding to 51230630 its reverse (3603215), we get a palindrome (54833845).

The spelling of 51230630 in words is "fifty-one million, two hundred thirty thousand, six hundred thirty".