51375033 has 8 divisors (see below), whose sum is σ = 76111200. Its totient is φ = 34250004.

The previous prime is 51375013. The next prime is 51375041. The reversal of 51375033 is 33057315.

It is not a de Polignac number, because 51375033 - 2⁵ = 51375001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1902779 = 51375033 / (5 + 1 + 3 + 7 + 5 + 0 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 51374988 and 51375006.

It is not an unprimeable number, because it can be changed into a prime (51375013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 951363 + ... + 951416.

It is an arithmetic number, because the mean of its divisors is an integer number (9513900).

Almost surely, 2^51375033 is an apocalyptic number.

It is an amenable number.

51375033 is a deficient number, since it is larger than the sum of its proper divisors (24736167).

51375033 is a wasteful number, since it uses less digits than its factorization.

51375033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902788 (or 1902782 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 51375033 is about 7167.6378954297. The cubic root of 51375033 is about 371.7497666768.

The spelling of 51375033 in words is "fifty-one million, three hundred seventy-five thousand, thirty-three".