51488 has 12 divisors (see below), whose sum is σ = 101430. Its totient is φ = 25728.

The previous prime is 51487. The next prime is 51503. The reversal of 51488 is 88415.

It can be written as a sum of positive squares in only one way, i.e., 29584 + 21904 = 172^2 + 148^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (51481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 773 + ... + 836.

2⁵¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

51488 is a deficient number, since it is larger than the sum of its proper divisors (49942).

51488 is a wasteful number, since it uses less digits than its factorization.

51488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1611 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 51488 is about 226.9096736589. The cubic root of 51488 is about 37.2022043631.

The spelling of 51488 in words is "fifty-one thousand, four hundred eighty-eight".