51567655 has 16 divisors (see below), whose sum is σ = 64929600. Its totient is φ = 39262720.

The previous prime is 51567641. The next prime is 51567661. The reversal of 51567655 is 55676515.

51567655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51567655 - 2¹⁵ = 51534887 is a prime.

It is a congruent number.

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, 7791 + ... + 12799.

It is an arithmetic number, because the mean of its divisors is an integer number (4058100).

Almost surely, 2^51567655 is an apocalyptic number.

51567655 is a deficient number, since it is larger than the sum of its proper divisors (13361945).

51567655 is a wasteful number, since it uses less digits than its factorization.

51567655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114.

The product of its digits is 157500, while the sum is 40.

The square root of 51567655 is about 7181.0622473280. The cubic root of 51567655 is about 372.2137915304.

The spelling of 51567655 in words is "fifty-one million, five hundred sixty-seven thousand, six hundred fifty-five".