51415135 has 8 divisors (see below), whose sum is σ = 61738416. Its totient is φ = 41105280.

The previous prime is 51415129. The next prime is 51415139. The reversal of 51415135 is 53151415.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-51415135 is a prime.

It is a super-2 number, since 2×51415135² = 5287032214136450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9687 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (7717302).

Almost surely, 2^51415135 is an apocalyptic number.

51415135 is a deficient number, since it is larger than the sum of its proper divisors (10323281).

51415135 is a wasteful number, since it uses less digits than its factorization.

51415135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its digits is 1500, while the sum is 25.

The square root of 51415135 is about 7170.4347845859. The cubic root of 51415135 is about 371.8464675517.

The spelling of 51415135 in words is "fifty-one million, four hundred fifteen thousand, one hundred thirty-five".