53895813 has 16 divisors (see below), whose sum is σ = 74226240. Its totient is φ = 34763904.

The previous prime is 53895811. The next prime is 53895817. The reversal of 53895813 is 31859835.

It is not a de Polignac number, because 53895813 - 2¹ = 53895811 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53895811) 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, 12145 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (4639140).

Almost surely, 2^53895813 is an apocalyptic number.

It is an amenable number.

53895813 is a deficient number, since it is larger than the sum of its proper divisors (20330427).

53895813 is a wasteful number, since it uses less digits than its factorization.

53895813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988.

The product of its digits is 129600, while the sum is 42.

The square root of 53895813 is about 7341.3767782344. The cubic root of 53895813 is about 377.7330706963.

The spelling of 53895813 in words is "fifty-three million, eight hundred ninety-five thousand, eight hundred thirteen".