257541413 has 4 divisors (see below), whose sum is σ = 258034368. Its totient is φ = 257048460.

The previous prime is 257541391. The next prime is 257541421. The reversal of 257541413 is 314145752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 257541413 - 2⁸ = 257541157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 257541413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257541013) 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, 245693 + ... + 246738.

It is an arithmetic number, because the mean of its divisors is an integer number (64508592).

Almost surely, 2^257541413 is an apocalyptic number.

It is an amenable number.

257541413 is a deficient number, since it is larger than the sum of its proper divisors (492955).

257541413 is an equidigital number, since it uses as much as digits as its factorization.

257541413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492954.

The product of its digits is 16800, while the sum is 32.

The square root of 257541413 is about 16048.0968653607. The cubic root of 257541413 is about 636.2322676896.

The spelling of 257541413 in words is "two hundred fifty-seven million, five hundred forty-one thousand, four hundred thirteen".