51147316 has 48 divisors (see below), whose sum is σ = 103642560. Its totient is φ = 21841920.

The previous prime is 51147311. The next prime is 51147319. The reversal of 51147316 is 61374115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51147311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161190 + ... + 161506.

It is an arithmetic number, because the mean of its divisors is an integer number (2159220).

Almost surely, 2^51147316 is an apocalyptic number.

It is an amenable number.

51147316 is an abundant number, since it is smaller than the sum of its proper divisors (52495244).

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

51147316 is a wasteful number, since it uses less digits than its factorization.

51147316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 51147316 is about 7151.7351740679. The cubic root of 51147316 is about 371.1996997155.

The spelling of 51147316 in words is "fifty-one million, one hundred forty-seven thousand, three hundred sixteen".