51002255 has 16 divisors (see below), whose sum is σ = 63020160. Its totient is φ = 39607968.

The previous prime is 51002249. The next prime is 51002267. The reversal of 51002255 is 55220015.

It is a cyclic number.

It is not a de Polignac number, because 51002255 - 2⁴ = 51002239 is a prime.

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, 23444 + ... + 25526.

It is an arithmetic number, because the mean of its divisors is an integer number (3938760).

Almost surely, 2^51002255 is an apocalyptic number.

51002255 is a deficient number, since it is larger than the sum of its proper divisors (12017905).

51002255 is a wasteful number, since it uses less digits than its factorization.

51002255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 51002255 is about 7141.5863083772. The cubic root of 51002255 is about 370.8484425383.

The spelling of 51002255 in words is "fifty-one million, two thousand, two hundred fifty-five".