51831426 has 32 divisors (see below), whose sum is σ = 107458560. Its totient is φ = 16655184.

The previous prime is 51831391. The next prime is 51831431. The reversal of 51831426 is 62413815.

It is a junction number, because it is equal to n+sod(n) for n = 51831393 and 51831402.

It is an unprimeable number.

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, 19111 + ... + 21653.

It is an arithmetic number, because the mean of its divisors is an integer number (3358080).

Almost surely, 2^51831426 is an apocalyptic number.

51831426 is an abundant number, since it is smaller than the sum of its proper divisors (55627134).

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

51831426 is a wasteful number, since it uses less digits than its factorization.

51831426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670.

The product of its digits is 5760, while the sum is 30.

The square root of 51831426 is about 7199.4045587118. The cubic root of 51831426 is about 372.8473429364.

The spelling of 51831426 in words is "fifty-one million, eight hundred thirty-one thousand, four hundred twenty-six".