1025304641 has 2 divisors, whose sum is σ = 1025304642. Its totient is φ = 1025304640.

The previous prime is 1025304613. The next prime is 1025304667. The reversal of 1025304641 is 1464035201.

It is an a-pointer prime, because the next prime (1025304667) can be obtained adding 1025304641 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778689025 + 246615616 = 27905^2 + 15704^2 .

It is an emirp because it is prime and its reverse (1464035201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025304641 is a prime.

It is a super-2 number, since 2×1025304641² = 2102499213712277762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025304641.

It is not a weakly prime, because it can be changed into another prime (1025304691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512652320 + 512652321.

It is an arithmetic number, because the mean of its divisors is an integer number (512652321).

Almost surely, 2^1025304641 is an apocalyptic number.

It is an amenable number.

1025304641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025304641 is an equidigital number, since it uses as much as digits as its factorization.

1025304641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1025304641 is about 32020.3785268070. The cubic root of 1025304641 is about 1008.3647167580.

Adding to 1025304641 its reverse (1464035201), we get a palindrome (2489339842).

The spelling of 1025304641 in words is "one billion, twenty-five million, three hundred four thousand, six hundred forty-one".