51916100 has 18 divisors (see below), whose sum is σ = 112658154. Its totient is φ = 20766400.

The previous prime is 51916099. The next prime is 51916141. The reversal of 51916100 is 161915.

It can be written as a sum of positive squares in 3 ways, for example, as 1420864 + 50495236 = 1192^2 + 7106^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 259481 + ... + 259680.

Almost surely, 2^51916100 is an apocalyptic number.

51916100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51916100 is an abundant number, since it is smaller than the sum of its proper divisors (60742054).

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

51916100 is a wasteful number, since it uses less digits than its factorization.

51916100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519175 (or 519168 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 51916100 is about 7205.2827841800. The cubic root of 51916100 is about 373.0502655152.

The spelling of 51916100 in words is "fifty-one million, nine hundred sixteen thousand, one hundred".