53005155443 has 4 divisors (see below), whose sum is σ = 53005626960. Its totient is φ = 53004683928.

The previous prime is 53005155439. The next prime is 53005155461. The reversal of 53005155443 is 34455150035.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34455150035 = 5 ⋅6891030007.

It is a cyclic number.

It is not a de Polignac number, because 53005155443 - 2² = 53005155439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53005155403) 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, 41738 + ... + 328256.

It is an arithmetic number, because the mean of its divisors is an integer number (13251406740).

Almost surely, 2^53005155443 is an apocalyptic number.

53005155443 is a deficient number, since it is larger than the sum of its proper divisors (471517).

53005155443 is a wasteful number, since it uses less digits than its factorization.

53005155443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471516.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 53005155443 in words is "fifty-three billion, five million, one hundred fifty-five thousand, four hundred forty-three".