51124205 has 16 divisors (see below), whose sum is σ = 68485824. Its totient is φ = 36314880.

The previous prime is 51124169. The next prime is 51124207. The reversal of 51124205 is 50242115.

It is not a de Polignac number, because 51124205 - 2⁸ = 51123949 is a prime.

It is a super-2 number, since 2×51124205² = 5227368673764050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8444 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (4280364).

Almost surely, 2^51124205 is an apocalyptic number.

51124205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51124205 is a deficient number, since it is larger than the sum of its proper divisors (17361619).

51124205 is a wasteful number, since it uses less digits than its factorization.

51124205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21676.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51124205 is about 7150.1192297751. The cubic root of 51124205 is about 371.1437822248.

The spelling of 51124205 in words is "fifty-one million, one hundred twenty-four thousand, two hundred five".