20453514541 has 2 divisors, whose sum is σ = 20453514542. Its totient is φ = 20453514540.

The previous prime is 20453514539. The next prime is 20453514551. The reversal of 20453514541 is 14541535402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13982116516 + 6471398025 = 118246^2 + 80445^2 .

It is a cyclic number.

It is not a de Polignac number, because 20453514541 - 2¹ = 20453514539 is a prime.

Together with 20453514539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20453514497 and 20453514506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20453514551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226757270 + 10226757271.

It is an arithmetic number, because the mean of its divisors is an integer number (10226757271).

Almost surely, 2^20453514541 is an apocalyptic number.

It is an amenable number.

20453514541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20453514541 is an equidigital number, since it uses as much as digits as its factorization.

20453514541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 20453514541 in words is "twenty billion, four hundred fifty-three million, five hundred fourteen thousand, five hundred forty-one".