51101838 has 24 divisors (see below), whose sum is σ = 112375848. Its totient is φ = 16779312.

The previous prime is 51101803. The next prime is 51101851. The reversal of 51101838 is 83810115.

It is a super-2 number, since 2×51101838² = 5222795693956488, which contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 19981 + ... + 22392.

It is an arithmetic number, because the mean of its divisors is an integer number (4682327).

Almost surely, 2^51101838 is an apocalyptic number.

51101838 is an abundant number, since it is smaller than the sum of its proper divisors (61274010).

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

51101838 is a wasteful number, since it uses less digits than its factorization.

51101838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42448 (or 42445 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 51101838 is about 7148.5549588711. The cubic root of 51101838 is about 371.0896488067.

The spelling of 51101838 in words is "fifty-one million, one hundred one thousand, eight hundred thirty-eight".