51671100 has 72 divisors (see below), whose sum is σ = 161014000. Its totient is φ = 12718080.

The previous prime is 51671099. The next prime is 51671117. The reversal of 51671100 is 117615.

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 23 ways as a sum of consecutive naturals, for example, 2725 + ... + 10524.

Almost surely, 2^51671100 is an apocalyptic number.

51671100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51671100 is an abundant number, since it is smaller than the sum of its proper divisors (109342900).

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

51671100 is a wasteful number, since it uses less digits than its factorization.

51671100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13279 (or 13272 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 51671100 is about 7188.2612640332. The cubic root of 51671100 is about 372.4625129310.

Adding to 51671100 its reverse (117615), we get a palindrome (51788715).

The spelling of 51671100 in words is "fifty-one million, six hundred seventy-one thousand, one hundred".