51124164 has 48 divisors (see below), whose sum is σ = 146821248. Its totient is φ = 13483008.

The previous prime is 51124159. The next prime is 51124169. The reversal of 51124164 is 46142115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51124159) and next prime (51124169).

It is a super-2 number, since 2×51124164² = 5227360289397792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51124169) 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 15 ways as a sum of consecutive naturals, for example, 22317 + ... + 24500.

It is an arithmetic number, because the mean of its divisors is an integer number (3058776).

Almost surely, 2^51124164 is an apocalyptic number.

It is an amenable number.

51124164 is an abundant number, since it is smaller than the sum of its proper divisors (95697084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51124164 is a wasteful number, since it uses less digits than its factorization.

51124164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46844 (or 46842 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 51124164 is about 7150.1163626895. The cubic root of 51124164 is about 371.1436830096.

Adding to 51124164 its reverse (46142115), we get a palindrome (97266279).

The spelling of 51124164 in words is "fifty-one million, one hundred twenty-four thousand, one hundred sixty-four".