51101984 has 24 divisors (see below), whose sum is σ = 100780848. Its totient is φ = 25506880.

The previous prime is 51101977. The next prime is 51101987. The reversal of 51101984 is 48910115.

It is a super-2 number, since 2×51101984² = 5222825537472512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51101987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25499 + ... + 27429.

It is an arithmetic number, because the mean of its divisors is an integer number (4199202).

Almost surely, 2^51101984 is an apocalyptic number.

It is an amenable number.

51101984 is a deficient number, since it is larger than the sum of its proper divisors (49678864).

51101984 is a wasteful number, since it uses less digits than its factorization.

51101984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2760 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 51101984 is about 7148.5651707178. The cubic root of 51101984 is about 371.0900022123.

The spelling of 51101984 in words is "fifty-one million, one hundred one thousand, nine hundred eighty-four".