53720205 has 32 divisors (see below), whose sum is σ = 107163648. Its totient is φ = 22324800.

The previous prime is 53720197. The next prime is 53720207. The reversal of 53720205 is 50202735.

It is not a de Polignac number, because 53720205 - 2³ = 53720197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53720207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22101 + ... + 24410.

It is an arithmetic number, because the mean of its divisors is an integer number (3348864).

Almost surely, 2^53720205 is an apocalyptic number.

53720205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53720205 is a deficient number, since it is larger than the sum of its proper divisors (53443443).

53720205 is a wasteful number, since it uses less digits than its factorization.

53720205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46537.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 53720205 is about 7329.4068654974. The cubic root of 53720205 is about 377.3223701242.

The spelling of 53720205 in words is "fifty-three million, seven hundred twenty thousand, two hundred five".