51927447 has 24 divisors (see below), whose sum is σ = 81796608. Its totient is φ = 29047200.

The previous prime is 51927431. The next prime is 51927451. The reversal of 51927447 is 74472915.

51927447 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 51927447 - 2⁴ = 51927431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51927467) 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 23 ways as a sum of consecutive naturals, for example, 922 + ... + 10232.

It is an arithmetic number, because the mean of its divisors is an integer number (3408192).

Almost surely, 2^51927447 is an apocalyptic number.

51927447 is a deficient number, since it is larger than the sum of its proper divisors (29869161).

51927447 is a wasteful number, since it uses less digits than its factorization.

51927447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9351 (or 9338 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 51927447 is about 7206.0701495337. The cubic root of 51927447 is about 373.0774420109.

It can be divided in two parts, 519 and 27447, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 51927447 in words is "fifty-one million, nine hundred twenty-seven thousand, four hundred forty-seven".