51667375 has 16 divisors (see below), whose sum is σ = 65123136. Its totient is φ = 40922400.

The previous prime is 51667367. The next prime is 51667379. The reversal of 51667375 is 57376615.

It is a happy number.

51667375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51667375 - 2³ = 51667367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51667379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10869 + ... + 14881.

It is an arithmetic number, because the mean of its divisors is an integer number (4070196).

Almost surely, 2^51667375 is an apocalyptic number.

51667375 is a deficient number, since it is larger than the sum of its proper divisors (13455761).

51667375 is a wasteful number, since it uses less digits than its factorization.

51667375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4121 counting only the distinct ones).

The product of its digits is 132300, while the sum is 40.

The square root of 51667375 is about 7188.0021563714. The cubic root of 51667375 is about 372.4535623687.

The spelling of 51667375 in words is "fifty-one million, six hundred sixty-seven thousand, three hundred seventy-five".