51894075 has 12 divisors (see below), whose sum is σ = 85798328. Its totient is φ = 27676800.

The previous prime is 51894067. The next prime is 51894083. The reversal of 51894075 is 57049815.

It is an interprime number because it is at equal distance from previous prime (51894067) and next prime (51894083).

It is not a de Polignac number, because 51894075 - 2³ = 51894067 is a prime.

It is a Duffinian 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, 345886 + ... + 346035.

Almost surely, 2^51894075 is an apocalyptic number.

51894075 is a deficient number, since it is larger than the sum of its proper divisors (33904253).

51894075 is a wasteful number, since it uses less digits than its factorization.

51894075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691934 (or 691929 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51894075 is about 7203.7542295667. The cubic root of 51894075 is about 372.9975034992.

The spelling of 51894075 in words is "fifty-one million, eight hundred ninety-four thousand, seventy-five".