53750 has 20 divisors (see below), whose sum is σ = 103092. Its totient is φ = 21000.

The previous prime is 53731. The next prime is 53759. The reversal of 53750 is 5735.

It is an Ulam number.

It is a nialpdrome in base 5.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 53750.

It is not an unprimeable number, because it can be changed into a prime (53759) by changing a digit.

53750 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1229 + ... + 1271.

2⁵³⁷⁵⁰ is an apocalyptic number.

53750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53750 is a deficient number, since it is larger than the sum of its proper divisors (49342).

53750 is an equidigital number, since it uses as much as digits as its factorization.

53750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 20.

The square root of 53750 is about 231.8404623874. The cubic root of 53750 is about 37.7392115714.

The spelling of 53750 in words is "fifty-three thousand, seven hundred fifty".