51190838 has 4 divisors (see below), whose sum is σ = 76786260. Its totient is φ = 25595418.

The previous prime is 51190817. The next prime is 51190861. The reversal of 51190838 is 83809115.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51190798 and 51190807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12797708 + ... + 12797711.

It is an arithmetic number, because the mean of its divisors is an integer number (19196565).

Almost surely, 2^51190838 is an apocalyptic number.

51190838 is a deficient number, since it is larger than the sum of its proper divisors (25595422).

51190838 is a wasteful number, since it uses less digits than its factorization.

51190838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25595421.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 51190838 is about 7154.7772851431. Note that the first 3 decimals coincide. The cubic root of 51190838 is about 371.3049562860.

The spelling of 51190838 in words is "fifty-one million, one hundred ninety thousand, eight hundred thirty-eight".