51017875 has 16 divisors (see below), whose sum is σ = 64554048. Its totient is φ = 40248000.

The previous prime is 51017861. The next prime is 51017881. The reversal of 51017875 is 57871015.

It is not a de Polignac number, because 51017875 - 2⁹ = 51017363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51017875.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6330 + ... + 11920.

It is an arithmetic number, because the mean of its divisors is an integer number (4034628).

Almost surely, 2^51017875 is an apocalyptic number.

51017875 is a deficient number, since it is larger than the sum of its proper divisors (13536173).

51017875 is an equidigital number, since it uses as much as digits as its factorization.

51017875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 51017875 is about 7142.6798192275. The cubic root of 51017875 is about 370.8862974751.

The spelling of 51017875 in words is "fifty-one million, seventeen thousand, eight hundred seventy-five".