51905275 has 12 divisors (see below), whose sum is σ = 64504800. Its totient is φ = 41432480.

The previous prime is 51905261. The next prime is 51905311. The reversal of 51905275 is 57250915.

It is not a de Polignac number, because 51905275 - 2¹⁵ = 51872507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51905275.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10686 + ... + 14764.

It is an arithmetic number, because the mean of its divisors is an integer number (5375400).

Almost surely, 2^51905275 is an apocalyptic number.

51905275 is a deficient number, since it is larger than the sum of its proper divisors (12599525).

51905275 is a wasteful number, since it uses less digits than its factorization.

51905275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598 (or 4593 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 51905275 is about 7204.5315600669. The cubic root of 51905275 is about 373.0243355382.

The spelling of 51905275 in words is "fifty-one million, nine hundred five thousand, two hundred seventy-five".