51378302 has 8 divisors (see below), whose sum is σ = 77176800. Its totient is φ = 25652704.

The previous prime is 51378293. The next prime is 51378307. The reversal of 51378302 is 20387315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51378307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16427 + ... + 19302.

It is an arithmetic number, because the mean of its divisors is an integer number (9647100).

Almost surely, 2^51378302 is an apocalyptic number.

51378302 is a deficient number, since it is larger than the sum of its proper divisors (25798498).

51378302 is a wasteful number, since it uses less digits than its factorization.

51378302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36450.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51378302 is about 7167.8659306658. The cubic root of 51378302 is about 371.7576513382.

The spelling of 51378302 in words is "fifty-one million, three hundred seventy-eight thousand, three hundred two".