51488536 has 32 divisors (see below), whose sum is σ = 109900800. Its totient is φ = 22385440.

The previous prime is 51488509. The next prime is 51488539. The reversal of 51488536 is 63588415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51488539) 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 7 ways as a sum of consecutive naturals, for example, 10696 + ... + 14743.

It is an arithmetic number, because the mean of its divisors is an integer number (3434400).

Almost surely, 2^51488536 is an apocalyptic number.

It is an amenable number.

51488536 is an abundant number, since it is smaller than the sum of its proper divisors (58412264).

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

51488536 is a wasteful number, since it uses less digits than its factorization.

51488536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25479 (or 25475 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 51488536 is about 7175.5512680212. The cubic root of 51488536 is about 372.0233345674.

The spelling of 51488536 in words is "fifty-one million, four hundred eighty-eight thousand, five hundred thirty-six".