25026547565641 has 4 divisors (see below), whose sum is σ = 25450726338000. Its totient is φ = 24602368793284.

The previous prime is 25026547565609. The next prime is 25026547565653. The reversal of 25026547565641 is 14656574562052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25026547565641 - 2⁵ = 25026547565609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25026547565681) 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, 212089386091 + ... + 212089386208.

It is an arithmetic number, because the mean of its divisors is an integer number (6362681584500).

Almost surely, 2^{25026547565641} is an apocalyptic number.

It is an amenable number.

25026547565641 is a deficient number, since it is larger than the sum of its proper divisors (424178772359).

25026547565641 is an equidigital number, since it uses as much as digits as its factorization.

25026547565641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424178772358.

The product of its (nonzero) digits is 60480000, while the sum is 58.

The spelling of 25026547565641 in words is "twenty-five trillion, twenty-six billion, five hundred forty-seven million, five hundred sixty-five thousand, six hundred forty-one".