257850074 has 4 divisors (see below), whose sum is σ = 386775114. Its totient is φ = 128925036.

The previous prime is 257850053. The next prime is 257850091. The reversal of 257850074 is 470058752.

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

It can be written as a sum of positive squares in only one way, i.e., 228765625 + 29084449 = 15125^2 + 5393^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64462517 + ... + 64462520.

Almost surely, 2^257850074 is an apocalyptic number.

257850074 is a deficient number, since it is larger than the sum of its proper divisors (128925040).

257850074 is a wasteful number, since it uses less digits than its factorization.

257850074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128925039.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 257850074 is about 16057.7107334763. The cubic root of 257850074 is about 636.4863390441.

The spelling of 257850074 in words is "two hundred fifty-seven million, eight hundred fifty thousand, seventy-four".