25427455389 has 48 divisors (see below), whose sum is σ = 43956912000. Its totient is φ = 14521205664.

The previous prime is 25427455357. The next prime is 25427455393. The reversal of 25427455389 is 98355472452.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

25427455389 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 7 + 4 + 553 + 89 = 666.

It is not a de Polignac number, because 25427455389 - 2⁵ = 25427455357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25427445389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15344649 + ... + 15346305.

It is an arithmetic number, because the mean of its divisors is an integer number (915769000).

Almost surely, 2^25427455389 is an apocalyptic number.

It is an amenable number.

25427455389 is a deficient number, since it is larger than the sum of its proper divisors (18529456611).

25427455389 is an frugal number, since it uses more digits than its factorization.

25427455389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344 (or 1667 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 25427455389 in words is "twenty-five billion, four hundred twenty-seven million, four hundred fifty-five thousand, three hundred eighty-nine".