275020427 has 16 divisors (see below), whose sum is σ = 311316480. Its totient is φ = 240660000.

The previous prime is 275020399. The next prime is 275020457. The reversal of 275020427 is 724020572.

It is a cyclic number.

It is not a de Polignac number, because 275020427 - 2⁶ = 275020363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275020427.

It is not an unprimeable number, because it can be changed into a prime (275020457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121052 + ... + 123302.

It is an arithmetic number, because the mean of its divisors is an integer number (19457280).

Almost surely, 2^275020427 is an apocalyptic number.

275020427 is a deficient number, since it is larger than the sum of its proper divisors (36296053).

275020427 is a wasteful number, since it uses less digits than its factorization.

275020427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 275020427 is about 16583.7398375638. The cubic root of 275020427 is about 650.3118243492.

Adding to 275020427 its reverse (724020572), we get a palindrome (999040999).

The spelling of 275020427 in words is "two hundred seventy-five million, twenty thousand, four hundred twenty-seven".