2557466 has 4 divisors (see below), whose sum is σ = 3836202. Its totient is φ = 1278732.

The previous prime is 2557453. The next prime is 2557501. The reversal of 2557466 is 6647552.

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., 2449225 + 108241 = 1565^2 + 329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639365 + ... + 639368.

2^2557466 is an apocalyptic number.

2557466 is a deficient number, since it is larger than the sum of its proper divisors (1278736).

2557466 is a wasteful number, since it uses less digits than its factorization.

2557466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278735.

The product of its digits is 50400, while the sum is 35.

The square root of 2557466 is about 1599.2079289448. The cubic root of 2557466 is about 136.7529245932.

The spelling of 2557466 in words is "two million, five hundred fifty-seven thousand, four hundred sixty-six".