2043523553 has 2 divisors, whose sum is σ = 2043523554. Its totient is φ = 2043523552.

The previous prime is 2043523499. The next prime is 2043523561. The reversal of 2043523553 is 3553253402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1954258849 + 89264704 = 44207^2 + 9448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043523553 - 2¹⁰ = 2043522529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2043523583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021761776 + 1021761777.

It is an arithmetic number, because the mean of its divisors is an integer number (1021761777).

Almost surely, 2^2043523553 is an apocalyptic number.

It is an amenable number.

2043523553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043523553 is an equidigital number, since it uses as much as digits as its factorization.

2043523553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 32.

The square root of 2043523553 is about 45205.3487211414. The cubic root of 2043523553 is about 1268.9949170614.

Adding to 2043523553 its reverse (3553253402), we get a palindrome (5596776955).

The spelling of 2043523553 in words is "two billion, forty-three million, five hundred twenty-three thousand, five hundred fifty-three".