51342230 has 16 divisors (see below), whose sum is σ = 93718944. Its totient is φ = 20247360.

The previous prime is 51342217. The next prime is 51342253. The reversal of 51342230 is 3224315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35447 + ... + 36866.

It is an arithmetic number, because the mean of its divisors is an integer number (5857434).

Almost surely, 2^51342230 is an apocalyptic number.

51342230 is a deficient number, since it is larger than the sum of its proper divisors (42376714).

51342230 is a wasteful number, since it uses less digits than its factorization.

51342230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72391.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 51342230 is about 7165.3492587591. The cubic root of 51342230 is about 371.6706289893.

Adding to 51342230 its reverse (3224315), we get a palindrome (54566545).

The spelling of 51342230 in words is "fifty-one million, three hundred forty-two thousand, two hundred thirty".