51550198 has 16 divisors (see below), whose sum is σ = 89249184. Its totient is φ = 21873600.

The previous prime is 51550183. The next prime is 51550201. The reversal of 51550198 is 89105515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16815 + ... + 19642.

It is an arithmetic number, because the mean of its divisors is an integer number (5578074).

Almost surely, 2^51550198 is an apocalyptic number.

51550198 is a deficient number, since it is larger than the sum of its proper divisors (37698986).

51550198 is a wasteful number, since it uses less digits than its factorization.

51550198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36567.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 51550198 is about 7179.8466557441. The cubic root of 51550198 is about 372.1717854220.

The spelling of 51550198 in words is "fifty-one million, five hundred fifty thousand, one hundred ninety-eight".