20264545949 has 2 divisors, whose sum is σ = 20264545950. Its totient is φ = 20264545948.

The previous prime is 20264545901. The next prime is 20264545997. The reversal of 20264545949 is 94954546202.

It is a balanced prime because it is at equal distance from previous prime (20264545901) and next prime (20264545997).

It can be written as a sum of positive squares in only one way, i.e., 16797456025 + 3467089924 = 129605^2 + 58882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20264545949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20264545897 and 20264545906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20264545999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132272974 + 10132272975.

It is an arithmetic number, because the mean of its divisors is an integer number (10132272975).

Almost surely, 2^20264545949 is an apocalyptic number.

It is an amenable number.

20264545949 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264545949 is an equidigital number, since it uses as much as digits as its factorization.

20264545949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 20264545949 in words is "twenty billion, two hundred sixty-four million, five hundred forty-five thousand, nine hundred forty-nine".