53915 has 8 divisors (see below), whose sum is σ = 66528. Its totient is φ = 41920.

The previous prime is 53899. The next prime is 53917. The reversal of 53915 is 51935.

53915 = 27² + 28² + ... + 56².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53915 - 2⁴ = 53899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74 + ... + 336.

It is an arithmetic number, because the mean of its divisors is an integer number (8316).

2⁵³⁹¹⁵ is an apocalyptic number.

53915 is a deficient number, since it is larger than the sum of its proper divisors (12613).

53915 is a wasteful number, since it uses less digits than its factorization.

53915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 675, while the sum is 23.

The square root of 53915 is about 232.1960378646. The cubic root of 53915 is about 37.7777889914. Note that the first 4 decimals are identical.

The spelling of 53915 in words is "fifty-three thousand, nine hundred fifteen".