51849186 has 16 divisors (see below), whose sum is σ = 103771584. Its totient is φ = 17270864.

The previous prime is 51849181. The next prime is 51849191. The reversal of 51849186 is 68194815.

It is an interprime number because it is at equal distance from previous prime (51849181) and next prime (51849191).

It is not an unprimeable number, because it can be changed into a prime (51849181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11491 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (6485724).

Almost surely, 2^51849186 is an apocalyptic number.

51849186 is an abundant number, since it is smaller than the sum of its proper divisors (51922398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51849186 is a wasteful number, since it uses less digits than its factorization.

51849186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105.

The product of its digits is 69120, while the sum is 42.

The square root of 51849186 is about 7200.6378884096. The cubic root of 51849186 is about 372.8899233626.

The spelling of 51849186 in words is "fifty-one million, eight hundred forty-nine thousand, one hundred eighty-six".