51583532 has 72 divisors (see below), whose sum is σ = 121992192. Its totient is φ = 18532800.

The previous prime is 51583517. The next prime is 51583573. The reversal of 51583532 is 23538515.

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 23 ways as a sum of consecutive naturals, for example, 51557 + ... + 52547.

It is an arithmetic number, because the mean of its divisors is an integer number (1694336).

Almost surely, 2^51583532 is an apocalyptic number.

51583532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51583532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60996096).

51583532 is an abundant number, since it is smaller than the sum of its proper divisors (70408660).

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

51583532 is a wasteful number, since it uses less digits than its factorization.

51583532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1024 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 51583532 is about 7182.1676393691. The cubic root of 51583532 is about 372.2519875144.

The spelling of 51583532 in words is "fifty-one million, five hundred eighty-three thousand, five hundred thirty-two".