51050655 has 24 divisors (see below), whose sum is σ = 91767312. Its totient is φ = 27226368.

The previous prime is 51050651. The next prime is 51050683. The reversal of 51050655 is 55605015.

51050655 is a `hidden beast` number, since 5 + 1 + 0 + 5 + 0 + 655 = 666.

It is not a de Polignac number, because 51050655 - 2² = 51050651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19794 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (3823638).

Almost surely, 2^51050655 is an apocalyptic number.

51050655 is a deficient number, since it is larger than the sum of its proper divisors (40716657).

51050655 is an equidigital number, since it uses as much as digits as its factorization.

51050655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42037 (or 42025 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 51050655 is about 7144.9741077208. The cubic root of 51050655 is about 370.9657144109.

The spelling of 51050655 in words is "fifty-one million, fifty thousand, six hundred fifty-five".