7285275427 has 4 divisors (see below), whose sum is σ = 7285530960. Its totient is φ = 7285019896.

The previous prime is 7285275419. The next prime is 7285275433. The reversal of 7285275427 is 7245725827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7245725827 = 12347 ⋅586841.

It is a cyclic number.

It is not a de Polignac number, because 7285275427 - 2³ = 7285275419 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7285675427) 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, 78727 + ... + 144112.

It is an arithmetic number, because the mean of its divisors is an integer number (1821382740).

Almost surely, 2^7285275427 is an apocalyptic number.

7285275427 is a deficient number, since it is larger than the sum of its proper divisors (255533).

7285275427 is a wasteful number, since it uses less digits than its factorization.

7285275427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255532.

The product of its digits is 2195200, while the sum is 49.

The square root of 7285275427 is about 85353.8249113653. The cubic root of 7285275427 is about 1938.5722505069.

The spelling of 7285275427 in words is "seven billion, two hundred eighty-five million, two hundred seventy-five thousand, four hundred twenty-seven".