25275137625019 has 2 divisors, whose sum is σ = 25275137625020. Its totient is φ = 25275137625018.

The previous prime is 25275137625013. The next prime is 25275137625043. The reversal of 25275137625019 is 91052673157252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25275137625019 - 2¹⁵ = 25275137592251 is a prime.

It is a super-2 number, since 2×25275137625019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25275137625013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12637568812509 + 12637568812510.

It is an arithmetic number, because the mean of its divisors is an integer number (12637568812510).

Almost surely, 2^{25275137625019} is an apocalyptic number.

25275137625019 is a deficient number, since it is larger than the sum of its proper divisors (1).

25275137625019 is an equidigital number, since it uses as much as digits as its factorization.

25275137625019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 25275137625019 in words is "twenty-five trillion, two hundred seventy-five billion, one hundred thirty-seven million, six hundred twenty-five thousand, nineteen".