257054199 has 4 divisors (see below), whose sum is σ = 342738936. Its totient is φ = 171369464.

The previous prime is 257054197. The next prime is 257054219. The reversal of 257054199 is 991450752.

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

It is a cyclic number.

It is not a de Polignac number, because 257054199 - 2¹ = 257054197 is a prime.

It is a super-2 number, since 2×257054199² = 132153722447063202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257054199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257054197) 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, 42842364 + ... + 42842369.

It is an arithmetic number, because the mean of its divisors is an integer number (85684734).

Almost surely, 2^257054199 is an apocalyptic number.

257054199 is a deficient number, since it is larger than the sum of its proper divisors (85684737).

257054199 is an equidigital number, since it uses as much as digits as its factorization.

257054199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85684736.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 257054199 is about 16032.9098731328. The cubic root of 257054199 is about 635.8308086994.

The spelling of 257054199 in words is "two hundred fifty-seven million, fifty-four thousand, one hundred ninety-nine".