51386082 has 32 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 15418320.

The previous prime is 51386063. The next prime is 51386107. The reversal of 51386082 is 28068315.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (3538080).

Almost surely, 2^51386082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51386082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56609280).

51386082 is an abundant number, since it is smaller than the sum of its proper divisors (61832478).

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

51386082 is a wasteful number, since it uses less digits than its factorization.

51386082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7678.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 51386082 is about 7168.4086100054. The cubic root of 51386082 is about 371.7764149565.

The spelling of 51386082 in words is "fifty-one million, three hundred eighty-six thousand, eighty-two".