51375415 has 16 divisors (see below), whose sum is σ = 75878208. Its totient is φ = 32518656.

The previous prime is 51375403. The next prime is 51375421. The reversal of 51375415 is 51457315.

It is a cyclic number.

It is not a de Polignac number, because 51375415 - 2⁵ = 51375383 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56002 + ... + 56911.

It is an arithmetic number, because the mean of its divisors is an integer number (4742388).

Almost surely, 2^51375415 is an apocalyptic number.

51375415 is a deficient number, since it is larger than the sum of its proper divisors (24502793).

51375415 is a wasteful number, since it uses less digits than its factorization.

51375415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112938.

The product of its digits is 10500, while the sum is 31.

The square root of 51375415 is about 7167.6645429317. The cubic root of 51375415 is about 371.7506880586.

The spelling of 51375415 in words is "fifty-one million, three hundred seventy-five thousand, four hundred fifteen".