51871482 has 64 divisors (see below), whose sum is σ = 130704000. Its totient is φ = 15116544.

The previous prime is 51871451. The next prime is 51871483. The reversal of 51871482 is 28417815.

It is not an unprimeable number, because it can be changed into a prime (51871483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11394 + ... + 15282.

It is an arithmetic number, because the mean of its divisors is an integer number (2042250).

Almost surely, 2^51871482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51871482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65352000).

51871482 is an abundant number, since it is smaller than the sum of its proper divisors (78832518).

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

51871482 is a wasteful number, since it uses less digits than its factorization.

51871482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3926 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 51871482 is about 7202.1859181779. The cubic root of 51871482 is about 372.9433652965.

The spelling of 51871482 in words is "fifty-one million, eight hundred seventy-one thousand, four hundred eighty-two".