53449966223 has 4 divisors (see below), whose sum is σ = 56263122360. Its totient is φ = 50636810088.

The previous prime is 53449966211. The next prime is 53449966279. The reversal of 53449966223 is 32266994435.

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 53449966223 - 2²⁸ = 53181530767 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 (53449966723) 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, 1406578040 + ... + 1406578077.

It is an arithmetic number, because the mean of its divisors is an integer number (14065780590).

Almost surely, 2^53449966223 is an apocalyptic number.

53449966223 is a deficient number, since it is larger than the sum of its proper divisors (2813156137).

53449966223 is a wasteful number, since it uses less digits than its factorization.

53449966223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813156136.

The product of its digits is 8398080, while the sum is 53.

The spelling of 53449966223 in words is "fifty-three billion, four hundred forty-nine million, nine hundred sixty-six thousand, two hundred twenty-three".