51347133 has 6 divisors (see below), whose sum is σ = 74168094. Its totient is φ = 34231416.

The previous prime is 51347113. The next prime is 51347137. The reversal of 51347133 is 33174315.

It can be written as a sum of positive squares in only one way, i.e., 31606884 + 19740249 = 5622^2 + 4443^2 .

It is not a de Polignac number, because 51347133 - 2⁶ = 51347069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51347097 and 51347106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2852610 + ... + 2852627.

It is an arithmetic number, because the mean of its divisors is an integer number (12361349).

Almost surely, 2^51347133 is an apocalyptic number.

It is an amenable number.

51347133 is a deficient number, since it is larger than the sum of its proper divisors (22820961).

51347133 is a wasteful number, since it uses less digits than its factorization.

51347133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705243 (or 5705240 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 51347133 is about 7165.6913832512. The cubic root of 51347133 is about 371.6824596863.

The spelling of 51347133 in words is "fifty-one million, three hundred forty-seven thousand, one hundred thirty-three".