53805599 has 16 divisors (see below), whose sum is σ = 56927904. Its totient is φ = 50803200.

The previous prime is 53805593. The next prime is 53805601. The reversal of 53805599 is 99550835.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53805599 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 (53805593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191339 + ... + 191619.

It is an arithmetic number, because the mean of its divisors is an integer number (3557994).

Almost surely, 2^53805599 is an apocalyptic number.

53805599 is a deficient number, since it is larger than the sum of its proper divisors (3122305).

53805599 is a wasteful number, since it uses less digits than its factorization.

53805599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 53805599 is about 7335.2299895777. The cubic root of 53805599 is about 377.5221956746.

The spelling of 53805599 in words is "fifty-three million, eight hundred five thousand, five hundred ninety-nine".