427280205525 has 24 divisors (see below), whose sum is σ = 707073747360. Its totient is φ = 227677247040.

The previous prime is 427280205493. The next prime is 427280205559. The reversal of 427280205525 is 525502082724.

It is not a de Polignac number, because 427280205525 - 2⁵ = 427280205493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2485387 + ... + 2651736.

It is an arithmetic number, because the mean of its divisors is an integer number (29461406140).

Almost surely, 2^427280205525 is an apocalyptic number.

It is an amenable number.

427280205525 is a deficient number, since it is larger than the sum of its proper divisors (279793541835).

427280205525 is a wasteful number, since it uses less digits than its factorization.

427280205525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138245 (or 5138240 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 42.

The spelling of 427280205525 in words is "four hundred twenty-seven billion, two hundred eighty million, two hundred five thousand, five hundred twenty-five".