25436022463 has 4 divisors (see below), whose sum is σ = 25550085568. Its totient is φ = 25321959360.

The previous prime is 25436022439. The next prime is 25436022481. The reversal of 25436022463 is 36422063452.

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 25436022463 - 2²⁹ = 24899151551 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 (25436022163) 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, 57031218 + ... + 57031663.

It is an arithmetic number, because the mean of its divisors is an integer number (6387521392).

Almost surely, 2^25436022463 is an apocalyptic number.

25436022463 is a deficient number, since it is larger than the sum of its proper divisors (114063105).

25436022463 is a wasteful number, since it uses less digits than its factorization.

25436022463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114063104.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 25436022463 in words is "twenty-five billion, four hundred thirty-six million, twenty-two thousand, four hundred sixty-three".