51124933 has 4 divisors (see below), whose sum is σ = 54132300. Its totient is φ = 48117568.

The previous prime is 51124919. The next prime is 51124943. The reversal of 51124933 is 33942115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 13890529 = 6102^2 + 3727^2 .

It is a cyclic number.

It is not a de Polignac number, because 51124933 - 2⁵ = 51124901 is a prime.

It is a super-2 number, since 2×51124933² = 5227517548508978, 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 (51124903) 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 3 ways as a sum of consecutive naturals, for example, 1503658 + ... + 1503691.

It is an arithmetic number, because the mean of its divisors is an integer number (13533075).

Almost surely, 2^51124933 is an apocalyptic number.

It is an amenable number.

51124933 is a deficient number, since it is larger than the sum of its proper divisors (3007367).

51124933 is a wasteful number, since it uses less digits than its factorization.

51124933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007366.

The product of its digits is 3240, while the sum is 28.

The square root of 51124933 is about 7150.1701378359. The cubic root of 51124933 is about 371.1455438913.

The spelling of 51124933 in words is "fifty-one million, one hundred twenty-four thousand, nine hundred thirty-three".