51220314 has 24 divisors (see below), whose sum is σ = 116819040. Its totient is φ = 16174728.

The previous prime is 51220307. The next prime is 51220343. The reversal of 51220314 is 41302215.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74542 + ... + 75225.

It is an arithmetic number, because the mean of its divisors is an integer number (4867460).

Almost surely, 2^51220314 is an apocalyptic number.

51220314 is an abundant number, since it is smaller than the sum of its proper divisors (65598726).

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

51220314 is a wasteful number, since it uses less digits than its factorization.

51220314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149794 (or 149791 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 51220314 is about 7156.8368711324. The cubic root of 51220314 is about 371.3762091725.

Adding to 51220314 its reverse (41302215), we get a palindrome (92522529).

The spelling of 51220314 in words is "fifty-one million, two hundred twenty thousand, three hundred fourteen".