274400055 has 20 divisors (see below), whose sum is σ = 491888232. Its totient is φ = 146346480.

The previous prime is 274400017. The next prime is 274400057. The reversal of 274400055 is 550004472.

It is not a de Polignac number, because 274400055 - 2⁶ = 274399991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274400057) 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 19 ways as a sum of consecutive naturals, for example, 338361 + ... + 339170.

Almost surely, 2^274400055 is an apocalyptic number.

274400055 is a deficient number, since it is larger than the sum of its proper divisors (217488177).

274400055 is an equidigital number, since it uses as much as digits as its factorization.

274400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677548 (or 677539 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 274400055 is about 16565.0250528033. The cubic root of 274400055 is about 649.8224801220.

The spelling of 274400055 in words is "two hundred seventy-four million, four hundred thousand, fifty-five".