25026277512649 has 12 divisors (see below), whose sum is σ = 29661487174404. Its totient is φ = 21046357366944.

The previous prime is 25026277512637. The next prime is 25026277512679. The reversal of 25026277512649 is 94621577262052.

It can be written as a sum of positive squares in 2 ways, for example, as 8592431751225 + 16433845761424 = 2931285^2 + 4053868^2 .

It is not a de Polignac number, because 25026277512649 - 2⁵ = 25026277512617 is a prime.

It is a super-2 number, since 2×25026277512649² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25026277512593 and 25026277512602.

It is not an unprimeable number, because it can be changed into a prime (25026277512619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4818302662 + ... + 4818307855.

It is an arithmetic number, because the mean of its divisors is an integer number (2471790597867).

Almost surely, 2^{25026277512649} is an apocalyptic number.

It is an amenable number.

25026277512649 is a deficient number, since it is larger than the sum of its proper divisors (4635209661755).

25026277512649 is an equidigital number, since it uses as much as digits as its factorization.

25026277512649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636610584 (or 9636610577 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 25026277512649 in words is "twenty-five trillion, twenty-six billion, two hundred seventy-seven million, five hundred twelve thousand, six hundred forty-nine".