51601100 has 36 divisors (see below), whose sum is σ = 113341704. Its totient is φ = 20388480.

The previous prime is 51601097. The next prime is 51601117. The reversal of 51601100 is 110615.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5192 + ... + 11408.

Almost surely, 2^51601100 is an apocalyptic number.

51601100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51601100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56670852).

51601100 is an abundant number, since it is smaller than the sum of its proper divisors (61740604).

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

51601100 is a wasteful number, since it uses less digits than its factorization.

51601100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 51601100 is about 7183.3905643505. The cubic root of 51601100 is about 372.2942424769.

Adding to 51601100 its reverse (110615), we get a palindrome (51711715).

The spelling of 51601100 in words is "fifty-one million, six hundred one thousand, one hundred".