2573064421 has 2 divisors, whose sum is σ = 2573064422. Its totient is φ = 2573064420.

The previous prime is 2573064407. The next prime is 2573064437. The reversal of 2573064421 is 1244603752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2490509025 + 82555396 = 49905^2 + 9086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2573064421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2573064451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286532210 + 1286532211.

It is an arithmetic number, because the mean of its divisors is an integer number (1286532211).

Almost surely, 2^2573064421 is an apocalyptic number.

It is an amenable number.

2573064421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2573064421 is an equidigital number, since it uses as much as digits as its factorization.

2573064421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2573064421 is about 50725.3824135413. The cubic root of 2573064421 is about 1370.3038772176.

The spelling of 2573064421 in words is "two billion, five hundred seventy-three million, sixty-four thousand, four hundred twenty-one".