275725889 has 2 divisors, whose sum is σ = 275725890. Its totient is φ = 275725888.

The previous prime is 275725871. The next prime is 275725903. The reversal of 275725889 is 988527572.

It is a happy number.

275725889 is nontrivially palindromic in base 4.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148035889 + 127690000 = 12167^2 + 11300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275725889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275725889.

It is not a weakly prime, because it can be changed into another prime (275725819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137862944 + 137862945.

It is an arithmetic number, because the mean of its divisors is an integer number (137862945).

Almost surely, 2^275725889 is an apocalyptic number.

It is an amenable number.

275725889 is a deficient number, since it is larger than the sum of its proper divisors (1).

275725889 is an equidigital number, since it uses as much as digits as its factorization.

275725889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 53.

The square root of 275725889 is about 16604.9959048474. The cubic root of 275725889 is about 650.8673934699.

The spelling of 275725889 in words is "two hundred seventy-five million, seven hundred twenty-five thousand, eight hundred eighty-nine".