51124447 has 8 divisors (see below), whose sum is σ = 55923840. Its totient is φ = 46350360.

The previous prime is 51124429. The next prime is 51124471. The reversal of 51124447 is 74442115.

51124447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51124447 - 2⁷ = 51124319 is a prime.

It is a super-2 number, since 2×51124447² = 5227418162111618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124247) 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 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 10300.

It is an arithmetic number, because the mean of its divisors is an integer number (6990480).

Almost surely, 2^51124447 is an apocalyptic number.

51124447 is a deficient number, since it is larger than the sum of its proper divisors (4799393).

51124447 is a wasteful number, since it uses less digits than its factorization.

51124447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12653.

The product of its digits is 4480, while the sum is 28.

The square root of 51124447 is about 7150.1361525498. The cubic root of 51124447 is about 371.1443678356.

It can be divided in two parts, 5112 and 4447, that added together give a palindrome (9559).

The spelling of 51124447 in words is "fifty-one million, one hundred twenty-four thousand, four hundred forty-seven".