53720159 has 4 divisors (see below), whose sum is σ = 53879904. Its totient is φ = 53560416.

The previous prime is 53720143. The next prime is 53720167. The reversal of 53720159 is 95102735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53720159 - 2⁴ = 53720143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53720129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79367 + ... + 80040.

It is an arithmetic number, because the mean of its divisors is an integer number (13469976).

Almost surely, 2^53720159 is an apocalyptic number.

53720159 is a deficient number, since it is larger than the sum of its proper divisors (159745).

53720159 is a wasteful number, since it uses less digits than its factorization.

53720159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159744.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 53720159 is about 7329.4037274529. The cubic root of 53720159 is about 377.3222624252.

The spelling of 53720159 in words is "fifty-three million, seven hundred twenty thousand, one hundred fifty-nine".