51628155 has 16 divisors (see below), whose sum is σ = 83738400. Its totient is φ = 27157248.

The previous prime is 51628141. The next prime is 51628163. The reversal of 51628155 is 55182615.

It is not a de Polignac number, because 51628155 - 2⁹ = 51627643 is a prime.

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, 22480 + ... + 24669.

It is an arithmetic number, because the mean of its divisors is an integer number (5233650).

Almost surely, 2^51628155 is an apocalyptic number.

51628155 is a deficient number, since it is larger than the sum of its proper divisors (32110245).

51628155 is a wasteful number, since it uses less digits than its factorization.

51628155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47230.

The product of its digits is 12000, while the sum is 33.

The square root of 51628155 is about 7185.2734812253. The cubic root of 51628155 is about 372.3592970389.

The spelling of 51628155 in words is "fifty-one million, six hundred twenty-eight thousand, one hundred fifty-five".