51124851 has 10 divisors (see below), whose sum is σ = 76371812. Its totient is φ = 34083180.

The previous prime is 51124841. The next prime is 51124867. The reversal of 51124851 is 15842115.

It is not a de Polignac number, because 51124851 - 2¹⁷ = 50993779 is a prime.

It is a super-2 number, since 2×51124851² = 5227500779544402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51124841) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 315505 + ... + 315666.

Almost surely, 2^51124851 is an apocalyptic number.

51124851 is a deficient number, since it is larger than the sum of its proper divisors (25246961).

51124851 is an equidigital number, since it uses as much as digits as its factorization.

51124851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631183 (or 631174 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 51124851 is about 7150.1644037043. The cubic root of 51124851 is about 371.1453454626.

Adding to 51124851 its reverse (15842115), we get a palindrome (66966966).

The spelling of 51124851 in words is "fifty-one million, one hundred twenty-four thousand, eight hundred fifty-one".