51155195 has 16 divisors (see below), whose sum is σ = 75552960. Its totient is φ = 32379264.

The previous prime is 51155189. The next prime is 51155257. The reversal of 51155195 is 59155115.

51155195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51155195 - 2¹⁰ = 51154171 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55760 + ... + 56669.

It is an arithmetic number, because the mean of its divisors is an integer number (4722060).

Almost surely, 2^51155195 is an apocalyptic number.

51155195 is a deficient number, since it is larger than the sum of its proper divisors (24397765).

51155195 is a wasteful number, since it uses less digits than its factorization.

51155195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112454.

The product of its digits is 5625, while the sum is 32.

The square root of 51155195 is about 7152.2859981967. The cubic root of 51155195 is about 371.2187592511.

The spelling of 51155195 in words is "fifty-one million, one hundred fifty-five thousand, one hundred ninety-five".