25360153487021 has 2 divisors, whose sum is σ = 25360153487022. Its totient is φ = 25360153487020.

The previous prime is 25360153486999. The next prime is 25360153487057. The reversal of 25360153487021 is 12078435106352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24839358888100 + 520794598921 = 4983910^2 + 721661^2 .

It is a cyclic number.

It is not a de Polignac number, because 25360153487021 - 2⁶ = 25360153486957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25360153487321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680076743510 + 12680076743511.

It is an arithmetic number, because the mean of its divisors is an integer number (12680076743511).

Almost surely, 2^{25360153487021} is an apocalyptic number.

It is an amenable number.

25360153487021 is a deficient number, since it is larger than the sum of its proper divisors (1).

25360153487021 is an equidigital number, since it uses as much as digits as its factorization.

25360153487021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 25360153487021 in words is "twenty-five trillion, three hundred sixty billion, one hundred fifty-three million, four hundred eighty-seven thousand, twenty-one".