51438124 has 12 divisors (see below), whose sum is σ = 95311944. Its totient is φ = 24206144.

The previous prime is 51438119. The next prime is 51438131. The reversal of 51438124 is 42183415.

It is a junction number, because it is equal to n+sod(n) for n = 51438092 and 51438101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378154 + ... + 378289.

It is an arithmetic number, because the mean of its divisors is an integer number (7942662).

Almost surely, 2^51438124 is an apocalyptic number.

It is an amenable number.

51438124 is a deficient number, since it is larger than the sum of its proper divisors (43873820).

51438124 is a wasteful number, since it uses less digits than its factorization.

51438124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756464 (or 756462 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 51438124 is about 7172.0376463039. The cubic root of 51438124 is about 371.9018799298.

The spelling of 51438124 in words is "fifty-one million, four hundred thirty-eight thousand, one hundred twenty-four".