51003135 has 16 divisors (see below), whose sum is σ = 90672480. Its totient is φ = 27201600.

The previous prime is 51003107. The next prime is 51003151. The reversal of 51003135 is 53130015.

It is a happy number.

It is not a de Polignac number, because 51003135 - 2¹⁰ = 51002111 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188766 + ... + 189035.

It is an arithmetic number, because the mean of its divisors is an integer number (5667030).

Almost surely, 2^51003135 is an apocalyptic number.

51003135 is a deficient number, since it is larger than the sum of its proper divisors (39669345).

51003135 is a wasteful number, since it uses less digits than its factorization.

51003135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377815 (or 377809 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 51003135 is about 7141.6479190730. The cubic root of 51003135 is about 370.8505754162.

The spelling of 51003135 in words is "fifty-one million, three thousand, one hundred thirty-five".