25547648531219 has 2 divisors, whose sum is σ = 25547648531220. Its totient is φ = 25547648531218.

The previous prime is 25547648531201. The next prime is 25547648531359. The reversal of 25547648531219 is 91213584674552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25547648531219 - 2²⁸ = 25547380095763 is a prime.

It is a super-2 number, since 2×25547648531219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25547644531219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12773824265609 + 12773824265610.

It is an arithmetic number, because the mean of its divisors is an integer number (12773824265610).

Almost surely, 2^{25547648531219} is an apocalyptic number.

25547648531219 is a deficient number, since it is larger than the sum of its proper divisors (1).

25547648531219 is an equidigital number, since it uses as much as digits as its factorization.

25547648531219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576000, while the sum is 62.

The spelling of 25547648531219 in words is "twenty-five trillion, five hundred forty-seven billion, six hundred forty-eight million, five hundred thirty-one thousand, two hundred nineteen".