53345983 has 4 divisors (see below), whose sum is σ = 56484000. Its totient is φ = 50207968.

The previous prime is 53345959. The next prime is 53345989. The reversal of 53345983 is 38954335.

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 53345983 - 2²¹ = 51248831 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 (53345989) 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, 1568983 + ... + 1569016.

It is an arithmetic number, because the mean of its divisors is an integer number (14121000).

Almost surely, 2^53345983 is an apocalyptic number.

53345983 is a deficient number, since it is larger than the sum of its proper divisors (3138017).

53345983 is a wasteful number, since it uses less digits than its factorization.

53345983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138016.

The product of its digits is 194400, while the sum is 40.

The square root of 53345983 is about 7303.8334455271. The cubic root of 53345983 is about 376.4441686801. Note that the first 3 decimals are identical.

The spelling of 53345983 in words is "fifty-three million, three hundred forty-five thousand, nine hundred eighty-three".