51304302 has 24 divisors (see below), whose sum is σ = 127039536. Its totient is φ = 14658336.

The previous prime is 51304291. The next prime is 51304333. The reversal of 51304302 is 20340315.

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

It is a congruent number.

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, 203463 + ... + 203714.

It is an arithmetic number, because the mean of its divisors is an integer number (5293314).

Almost surely, 2^51304302 is an apocalyptic number.

51304302 is an abundant number, since it is smaller than the sum of its proper divisors (75735234).

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

51304302 is a wasteful number, since it uses less digits than its factorization.

51304302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407192 (or 407189 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 51304302 is about 7162.7021437444. The cubic root of 51304302 is about 371.5790851390.

Adding to 51304302 its reverse (20340315), we get a palindrome (71644617).

The spelling of 51304302 in words is "fifty-one million, three hundred four thousand, three hundred two".