25140163145321 has 8 divisors (see below), whose sum is σ = 28732101492480. Its totient is φ = 21548346415488.

The previous prime is 25140163145311. The next prime is 25140163145389. The reversal of 25140163145321 is 12354136104152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25140163145321 - 2⁶ = 25140163145257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25140163145311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29960936 + ... + 30788601.

It is an arithmetic number, because the mean of its divisors is an integer number (3591512686560).

Almost surely, 2^{25140163145321} is an apocalyptic number.

It is an amenable number.

25140163145321 is a deficient number, since it is larger than the sum of its proper divisors (3591938347159).

25140163145321 is an equidigital number, since it uses as much as digits as its factorization.

25140163145321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60808663.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 25140163145321 its reverse (12354136104152), we get a palindrome (37494299249473).

The spelling of 25140163145321 in words is "twenty-five trillion, one hundred forty billion, one hundred sixty-three million, one hundred forty-five thousand, three hundred twenty-one".