275495551 has 2 divisors, whose sum is σ = 275495552. Its totient is φ = 275495550.

The previous prime is 275495533. The next prime is 275495653. The reversal of 275495551 is 155594572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275495551 - 2²⁷ = 141277823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275495498 and 275495507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275495501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137747775 + 137747776.

It is an arithmetic number, because the mean of its divisors is an integer number (137747776).

Almost surely, 2^275495551 is an apocalyptic number.

275495551 is a deficient number, since it is larger than the sum of its proper divisors (1).

275495551 is an equidigital number, since it uses as much as digits as its factorization.

275495551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315000, while the sum is 43.

The square root of 275495551 is about 16598.0586515411. The cubic root of 275495551 is about 650.6861007851.

The spelling of 275495551 in words is "two hundred seventy-five million, four hundred ninety-five thousand, five hundred fifty-one".