51016655 has 16 divisors (see below), whose sum is σ = 63694080. Its totient is φ = 39180288.

The previous prime is 51016649. The next prime is 51016733. The reversal of 51016655 is 55661015.

It is a cyclic number.

It is not a de Polignac number, because 51016655 - 2⁴ = 51016639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27074 + ... + 28896.

It is an arithmetic number, because the mean of its divisors is an integer number (3980880).

Almost surely, 2^51016655 is an apocalyptic number.

51016655 is a deficient number, since it is larger than the sum of its proper divisors (12677425).

51016655 is a wasteful number, since it uses less digits than its factorization.

51016655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 51016655 is about 7142.5944165968. The cubic root of 51016655 is about 370.8833410937.

The spelling of 51016655 in words is "fifty-one million, sixteen thousand, six hundred fifty-five".