275144455 has 4 divisors (see below), whose sum is σ = 330173352. Its totient is φ = 220115560.

The previous prime is 275144447. The next prime is 275144459. The reversal of 275144455 is 554441572.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 275144455 - 2³ = 275144447 is a prime.

It is a super-2 number, since 2×275144455² = 151408942234494050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275144459) 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, 27514441 + ... + 27514450.

It is an arithmetic number, because the mean of its divisors is an integer number (82543338).

Almost surely, 2^275144455 is an apocalyptic number.

275144455 is a deficient number, since it is larger than the sum of its proper divisors (55028897).

275144455 is an equidigital number, since it uses as much as digits as its factorization.

275144455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55028896.

The product of its digits is 112000, while the sum is 37.

The square root of 275144455 is about 16587.4788620815. The cubic root of 275144455 is about 650.4095683047.

The spelling of 275144455 in words is "two hundred seventy-five million, one hundred forty-four thousand, four hundred fifty-five".