51198208 has 36 divisors (see below), whose sum is σ = 104595568. Its totient is φ = 24998400.

The previous prime is 51198197. The next prime is 51198209. The reversal of 51198208 is 80289115.

It is a super-2 number, since 2×51198208² = 5242513004822528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51198209) 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, 8683 + ... + 13333.

Almost surely, 2^51198208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51198208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52297784).

51198208 is an abundant number, since it is smaller than the sum of its proper divisors (53397360).

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

51198208 is an equidigital number, since it uses as much as digits as its factorization.

51198208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710 (or 4696 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 51198208 is about 7155.2923070969. The cubic root of 51198208 is about 371.3227744889.

The spelling of 51198208 in words is "fifty-one million, one hundred ninety-eight thousand, two hundred eight".