51021834 has 16 divisors (see below), whose sum is σ = 103336320. Its totient is φ = 16791840.

The previous prime is 51021833. The next prime is 51021847. The reversal of 51021834 is 43812015.

It is a super-3 number, since 3×51021834³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51021833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53347 + ... + 54294.

It is an arithmetic number, because the mean of its divisors is an integer number (6458520).

Almost surely, 2^51021834 is an apocalyptic number.

51021834 is an abundant number, since it is smaller than the sum of its proper divisors (52314486).

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

51021834 is a wasteful number, since it uses less digits than its factorization.

51021834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107725.

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

The square root of 51021834 is about 7142.9569507313. The cubic root of 51021834 is about 370.8958908504.

Adding to 51021834 its reverse (43812015), we get a palindrome (94833849).

The spelling of 51021834 in words is "fifty-one million, twenty-one thousand, eight hundred thirty-four".