51590472 has 64 divisors (see below), whose sum is σ = 141696000. Its totient is φ = 15580224.

The previous prime is 51590471. The next prime is 51590477. The reversal of 51590472 is 27409515.

It is not an unprimeable number, because it can be changed into a prime (51590471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8029 + ... + 12947.

It is an arithmetic number, because the mean of its divisors is an integer number (2214000).

Almost surely, 2^51590472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51590472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70848000).

51590472 is an abundant number, since it is smaller than the sum of its proper divisors (90105528).

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

51590472 is a wasteful number, since it uses less digits than its factorization.

51590472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4966 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 51590472 is about 7182.6507641678. The cubic root of 51590472 is about 372.2686809101.

Adding to 51590472 its reverse (27409515), we get a palindrome (78999987).

The spelling of 51590472 in words is "fifty-one million, five hundred ninety thousand, four hundred seventy-two".