257074546 has 4 divisors (see below), whose sum is σ = 385611822. Its totient is φ = 128537272.

The previous prime is 257074513. The next prime is 257074553. The reversal of 257074546 is 645470752.

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., 244578321 + 12496225 = 15639^2 + 3535^2 .

It is a super-2 number, since 2×257074546² = 132174644402212232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 257074499 and 257074508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64268635 + ... + 64268638.

Almost surely, 2^257074546 is an apocalyptic number.

257074546 is a deficient number, since it is larger than the sum of its proper divisors (128537276).

257074546 is a wasteful number, since it uses less digits than its factorization.

257074546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128537275.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 257074546 is about 16033.5443991651. The cubic root of 257074546 is about 635.8475845495.

The spelling of 257074546 in words is "two hundred fifty-seven million, seventy-four thousand, five hundred forty-six".