51612135 has 16 divisors (see below), whose sum is σ = 82850784. Its totient is φ = 27436032.

The previous prime is 51612133. The next prime is 51612149. The reversal of 51612135 is 53121615.

It is not a de Polignac number, because 51612135 - 2¹ = 51612133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51612133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802 + ... + 10191.

It is an arithmetic number, because the mean of its divisors is an integer number (5178174).

Almost surely, 2^51612135 is an apocalyptic number.

51612135 is a deficient number, since it is larger than the sum of its proper divisors (31238649).

51612135 is a wasteful number, since it uses less digits than its factorization.

51612135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314.

The product of its digits is 900, while the sum is 24.

The square root of 51612135 is about 7184.1586146187. The cubic root of 51612135 is about 372.3207792119.

The spelling of 51612135 in words is "fifty-one million, six hundred twelve thousand, one hundred thirty-five".