51124105 has 8 divisors (see below), whose sum is σ = 61560072. Its totient is φ = 40758528.

The previous prime is 51124103. The next prime is 51124123. The reversal of 51124105 is 50142115.

It can be written as a sum of positive squares in 4 ways, for example, as 4447881 + 46676224 = 2109^2 + 6832^2 .

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 51124105 - 2¹ = 51124103 is a prime.

It is a super-2 number, since 2×51124105² = 5227348224102050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51124103) 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 7 ways as a sum of consecutive naturals, for example, 15984 + ... + 18913.

It is an arithmetic number, because the mean of its divisors is an integer number (7695009).

Almost surely, 2^51124105 is an apocalyptic number.

It is an amenable number.

51124105 is a deficient number, since it is larger than the sum of its proper divisors (10435967).

51124105 is a wasteful number, since it uses less digits than its factorization.

51124105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35195.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51124105 is about 7150.1122368813. The cubic root of 51124105 is about 371.1435402363.

The spelling of 51124105 in words is "fifty-one million, one hundred twenty-four thousand, one hundred five".