51163100 has 18 divisors (see below), whose sum is σ = 111024144. Its totient is φ = 20465200.

The previous prime is 51163043. The next prime is 51163117. The reversal of 51163100 is 136115.

It is a super-2 number, since 2×51163100² = 5235325603220000, which contains 22 as substring.

It is a congruent number.

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, 255716 + ... + 255915.

It is an arithmetic number, because the mean of its divisors is an integer number (6168008).

Almost surely, 2^51163100 is an apocalyptic number.

51163100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51163100 is an abundant number, since it is smaller than the sum of its proper divisors (59861044).

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

51163100 is a wasteful number, since it uses less digits than its factorization.

51163100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511645 (or 511638 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 51163100 is about 7152.8385973682. The cubic root of 51163100 is about 371.2378797148.

Adding to 51163100 its reverse (136115), we get a palindrome (51299215).

The spelling of 51163100 in words is "fifty-one million, one hundred sixty-three thousand, one hundred".