51189246 has 40 divisors (see below), whose sum is σ = 118413504. Its totient is φ = 16511040.

The previous prime is 51189239. The next prime is 51189253. The reversal of 51189246 is 64298115.

It is an interprime number because it is at equal distance from previous prime (51189239) and next prime (51189253).

It is a self number, because there is not a number n which added to its sum of digits gives 51189246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75 + ... + 10118.

Almost surely, 2^51189246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51189246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59206752).

51189246 is an abundant number, since it is smaller than the sum of its proper divisors (67224258).

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

51189246 is a wasteful number, since it uses less digits than its factorization.

51189246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238 (or 10229 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 51189246 is about 7154.6660299416. Note that the first 3 decimals coincide. The cubic root of 51189246 is about 371.3011071362.

The spelling of 51189246 in words is "fifty-one million, one hundred eighty-nine thousand, two hundred forty-six".