25466023412551 has 4 divisors (see below), whose sum is σ = 25466166282600. Its totient is φ = 25465880542504.

The previous prime is 25466023412441. The next prime is 25466023412581. The reversal of 25466023412551 is 15521432066452.

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

It is a cyclic number.

It is not a de Polignac number, because 25466023412551 - 2⁴³ = 16669930390343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25466023412581) 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, 71167321 + ... + 71524258.

It is an arithmetic number, because the mean of its divisors is an integer number (6366541570650).

Almost surely, 2^{25466023412551} is an apocalyptic number.

25466023412551 is a deficient number, since it is larger than the sum of its proper divisors (142870049).

25466023412551 is a wasteful number, since it uses less digits than its factorization.

25466023412551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142870048.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 25466023412551 in words is "twenty-five trillion, four hundred sixty-six billion, twenty-three million, four hundred twelve thousand, five hundred fifty-one".