51415133 has 16 divisors (see below), whose sum is σ = 65470464. Its totient is φ = 39208560.

The previous prime is 51415129. The next prime is 51415139. The reversal of 51415133 is 33151415.

It is a cyclic number.

It is not a de Polignac number, because 51415133 - 2² = 51415129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51415099 and 51415108.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3485 + ... + 10722.

It is an arithmetic number, because the mean of its divisors is an integer number (4091904).

Almost surely, 2^51415133 is an apocalyptic number.

It is an amenable number.

51415133 is a deficient number, since it is larger than the sum of its proper divisors (14055331).

51415133 is a wasteful number, since it uses less digits than its factorization.

51415133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14272.

The product of its digits is 900, while the sum is 23.

The square root of 51415133 is about 7170.4346451244. The cubic root of 51415133 is about 371.8464627302.

Adding to 51415133 its reverse (33151415), we get a palindrome (84566548).

The spelling of 51415133 in words is "fifty-one million, four hundred fifteen thousand, one hundred thirty-three".