51155135 has 8 divisors (see below), whose sum is σ = 61445616. Its totient is φ = 40884480.

The previous prime is 51155119. The next prime is 51155147. The reversal of 51155135 is 53155115.

51155135 = T₄₅₂₁ + T₄₅₂₂ + ... + T₄₅₂₅.

51155135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51155135 - 2⁴ = 51155119 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (7680702).

Almost surely, 2^51155135 is an apocalyptic number.

51155135 is a deficient number, since it is larger than the sum of its proper divisors (10290481).

51155135 is a wasteful number, since it uses less digits than its factorization.

51155135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913.

The product of its digits is 1875, while the sum is 26.

The square root of 51155135 is about 7152.2818037323. The cubic root of 51155135 is about 371.2186141167.

The spelling of 51155135 in words is "fifty-one million, one hundred fifty-five thousand, one hundred thirty-five".