51550135 has 64 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 30108672.

The previous prime is 51550099. The next prime is 51550159. The reversal of 51550135 is 53105515.

It is a cyclic number.

It is not a de Polignac number, because 51550135 - 2⁷ = 51550007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 579171 + ... + 579259.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 2^51550135 is an apocalyptic number.

51550135 is a deficient number, since it is larger than the sum of its proper divisors (30702665).

51550135 is a wasteful number, since it uses less digits than its factorization.

51550135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 51550135 is about 7179.8422684624. The cubic root of 51550135 is about 372.1716338103.

The spelling of 51550135 in words is "fifty-one million, five hundred fifty thousand, one hundred thirty-five".