51885185 has 8 divisors (see below), whose sum is σ = 67922496. Its totient is φ = 37734640.

The previous prime is 51885179. The next prime is 51885191. The reversal of 51885185 is 58158815.

It is an interprime number because it is at equal distance from previous prime (51885179) and next prime (51885191).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51885185 - 2¹⁴ = 51868801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471629 + ... + 471738.

It is an arithmetic number, because the mean of its divisors is an integer number (8490312).

Almost surely, 2^51885185 is an apocalyptic number.

51885185 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51885185 is a deficient number, since it is larger than the sum of its proper divisors (16037311).

51885185 is a wasteful number, since it uses less digits than its factorization.

51885185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943383.

The product of its digits is 64000, while the sum is 41.

The square root of 51885185 is about 7203.1371637641. The cubic root of 51885185 is about 372.9762028197.

The spelling of 51885185 in words is "fifty-one million, eight hundred eighty-five thousand, one hundred eighty-five".