25052453513 has 2 divisors, whose sum is σ = 25052453514. Its totient is φ = 25052453512.

The previous prime is 25052453509. The next prime is 25052453519. The reversal of 25052453513 is 31535425052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24733223824 + 319229689 = 157268^2 + 17867^2 .

It is a cyclic number.

It is not a de Polignac number, because 25052453513 - 2² = 25052453509 is a prime.

It is not a weakly prime, because it can be changed into another prime (25052453519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12526226756 + 12526226757.

It is an arithmetic number, because the mean of its divisors is an integer number (12526226757).

Almost surely, 2^25052453513 is an apocalyptic number.

It is an amenable number.

25052453513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25052453513 is an equidigital number, since it uses as much as digits as its factorization.

25052453513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 25052453513 its reverse (31535425052), we get a palindrome (56587878565).

The spelling of 25052453513 in words is "twenty-five billion, fifty-two million, four hundred fifty-three thousand, five hundred thirteen".