51797975 has 12 divisors (see below), whose sum is σ = 64318800. Its totient is φ = 41380800.

The previous prime is 51797969. The next prime is 51797981. The reversal of 51797975 is 57979715.

It is an interprime number because it is at equal distance from previous prime (51797969) and next prime (51797981).

It is not a de Polignac number, because 51797975 - 2⁴ = 51797959 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 11 ways as a sum of consecutive naturals, for example, 34235 + ... + 35715.

It is an arithmetic number, because the mean of its divisors is an integer number (5359900).

Almost surely, 2^51797975 is an apocalyptic number.

51797975 is a deficient number, since it is larger than the sum of its proper divisors (12520825).

51797975 is a wasteful number, since it uses less digits than its factorization.

51797975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890 (or 2885 counting only the distinct ones).

The product of its digits is 694575, while the sum is 50.

The square root of 51797975 is about 7197.0810055188. The cubic root of 51797975 is about 372.7671161867.

The spelling of 51797975 in words is "fifty-one million, seven hundred ninety-seven thousand, nine hundred seventy-five".