51220334 has 16 divisors (see below), whose sum is σ = 84049920. Its totient is φ = 23216760.

The previous prime is 51220307. The next prime is 51220343. The reversal of 51220334 is 43302215.

It is a happy number.

It is a Curzon 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, 5267 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (5253120).

Almost surely, 2^51220334 is an apocalyptic number.

51220334 is a deficient number, since it is larger than the sum of its proper divisors (32829586).

51220334 is a wasteful number, since it uses less digits than its factorization.

51220334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535.

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

The square root of 51220334 is about 7156.8382683976. The cubic root of 51220334 is about 371.3762575096.

Adding to 51220334 its reverse (43302215), we get a palindrome (94522549).

The spelling of 51220334 in words is "fifty-one million, two hundred twenty thousand, three hundred thirty-four".