25627642524997 has 4 divisors (see below), whose sum is σ = 25627740343596. Its totient is φ = 25627544706400.

The previous prime is 25627642524943. The next prime is 25627642525019. The reversal of 25627642524997 is 79942524672652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20223314797156 + 5404327727841 = 4497034^2 + 2324721^2 .

It is a cyclic number.

It is not a de Polignac number, because 25627642524997 - 2¹⁵ = 25627642492229 is a prime.

It is a super-2 number, since 2×25627642524997² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25627642524397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48515254 + ... + 49040647.

It is an arithmetic number, because the mean of its divisors is an integer number (6406935085899).

Almost surely, 2^{25627642524997} is an apocalyptic number.

It is an amenable number.

25627642524997 is a deficient number, since it is larger than the sum of its proper divisors (97818599).

25627642524997 is an equidigital number, since it uses as much as digits as its factorization.

25627642524997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97818598.

The product of its digits is 914457600, while the sum is 70.

The spelling of 25627642524997 in words is "twenty-five trillion, six hundred twenty-seven billion, six hundred forty-two million, five hundred twenty-four thousand, nine hundred ninety-seven".