51011198 has 8 divisors (see below), whose sum is σ = 87447792. Its totient is φ = 21861936.

The previous prime is 51011183. The next prime is 51011209. The reversal of 51011198 is 89111015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821815 + ... + 1821842.

It is an arithmetic number, because the mean of its divisors is an integer number (10930974).

Almost surely, 2^51011198 is an apocalyptic number.

51011198 is a deficient number, since it is larger than the sum of its proper divisors (36436594).

51011198 is a wasteful number, since it uses less digits than its factorization.

51011198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643666.

The product of its (nonzero) digits is 360, while the sum is 26.

The square root of 51011198 is about 7142.2124023302. The cubic root of 51011198 is about 370.8701167682.

The spelling of 51011198 in words is "fifty-one million, eleven thousand, one hundred ninety-eight".