51617852 has 96 divisors (see below), whose sum is σ = 113799168. Its totient is φ = 20160000.

The previous prime is 51617833. The next prime is 51617873. The reversal of 51617852 is 25871615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 726977 + ... + 727047.

It is an arithmetic number, because the mean of its divisors is an integer number (1185408).

Almost surely, 2^51617852 is an apocalyptic number.

51617852 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51617852 is an abundant number, since it is smaller than the sum of its proper divisors (62181316).

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

51617852 is a wasteful number, since it uses less digits than its factorization.

51617852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 169 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 51617852 is about 7184.5564929229. The cubic root of 51617852 is about 372.3345258453.

The spelling of 51617852 in words is "fifty-one million, six hundred seventeen thousand, eight hundred fifty-two".