53415020443 has 2 divisors, whose sum is σ = 53415020444. Its totient is φ = 53415020442.

The previous prime is 53415020423. The next prime is 53415020471. The reversal of 53415020443 is 34402051435.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53415020443 is a prime.

It is a super-2 number, since 2×53415020443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53415020413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26707510221 + 26707510222.

It is an arithmetic number, because the mean of its divisors is an integer number (26707510222).

Almost surely, 2^53415020443 is an apocalyptic number.

53415020443 is a deficient number, since it is larger than the sum of its proper divisors (1).

53415020443 is an equidigital number, since it uses as much as digits as its factorization.

53415020443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 53415020443 its reverse (34402051435), we get a palindrome (87817071878).

The spelling of 53415020443 in words is "fifty-three billion, four hundred fifteen million, twenty thousand, four hundred forty-three".