51466731 has 16 divisors (see below), whose sum is σ = 69728256. Its totient is φ = 33762816.

The previous prime is 51466729. The next prime is 51466747. The reversal of 51466731 is 13766415.

51466731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51466731 - 2¹ = 51466729 is a prime.

It is a super-2 number, since 2×51466731² = 5297648799652722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51466692 and 51466701.

It is not an unprimeable number, because it can be changed into a prime (51466711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59206 + ... + 60068.

It is an arithmetic number, because the mean of its divisors is an integer number (4358016).

Almost surely, 2^51466731 is an apocalyptic number.

51466731 is a deficient number, since it is larger than the sum of its proper divisors (18261525).

51466731 is a wasteful number, since it uses less digits than its factorization.

51466731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its digits is 15120, while the sum is 33.

The square root of 51466731 is about 7174.0317116667. The cubic root of 51466731 is about 371.9708108095.

The spelling of 51466731 in words is "fifty-one million, four hundred sixty-six thousand, seven hundred thirty-one".