257484055 has 8 divisors (see below), whose sum is σ = 309628800. Its totient is φ = 205555296.

The previous prime is 257484041. The next prime is 257484077. The reversal of 257484055 is 550484752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 257484055 - 2⁷ = 257483927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257483999 and 257484017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51360 + ... + 56149.

It is an arithmetic number, because the mean of its divisors is an integer number (38703600).

Almost surely, 2^257484055 is an apocalyptic number.

257484055 is a deficient number, since it is larger than the sum of its proper divisors (52144745).

257484055 is a wasteful number, since it uses less digits than its factorization.

257484055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107993.

The product of its (nonzero) digits is 224000, while the sum is 40.

The square root of 257484055 is about 16046.3097003641. The cubic root of 257484055 is about 636.1850316361.

The spelling of 257484055 in words is "two hundred fifty-seven million, four hundred eighty-four thousand, fifty-five".