53261983 has 4 divisors (see below), whose sum is σ = 53284000. Its totient is φ = 53239968.

The previous prime is 53261963. The next prime is 53262049. The reversal of 53261983 is 38916235.

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 53261983 - 2⁹ = 53261471 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 (53261903) 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, 6858 + ... + 12391.

It is an arithmetic number, because the mean of its divisors is an integer number (13321000).

Almost surely, 2^53261983 is an apocalyptic number.

53261983 is a deficient number, since it is larger than the sum of its proper divisors (22017).

53261983 is a wasteful number, since it uses less digits than its factorization.

53261983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22016.

The product of its digits is 38880, while the sum is 37.

The square root of 53261983 is about 7298.0807751079. The cubic root of 53261983 is about 376.2464785563.

The spelling of 53261983 in words is "fifty-three million, two hundred sixty-one thousand, nine hundred eighty-three".