257032466 has 4 divisors (see below), whose sum is σ = 385548702. Its totient is φ = 128516232.

The previous prime is 257032463. The next prime is 257032471. The reversal of 257032466 is 664230752.

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., 246333025 + 10699441 = 15695^2 + 3271^2 .

It is not an unprimeable number, because it can be changed into a prime (257032463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64258115 + ... + 64258118.

Almost surely, 2^257032466 is an apocalyptic number.

257032466 is a deficient number, since it is larger than the sum of its proper divisors (128516236).

257032466 is a wasteful number, since it uses less digits than its factorization.

257032466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128516235.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 257032466 is about 16032.2320966234. The cubic root of 257032466 is about 635.8128891316.

The spelling of 257032466 in words is "two hundred fifty-seven million, thirty-two thousand, four hundred sixty-six".