2057546 has 4 divisors (see below), whose sum is σ = 3086322. Its totient is φ = 1028772.

The previous prime is 2057543. The next prime is 2057569. The reversal of 2057546 is 6457502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6457502 = 2 ⋅3228751.

It can be written as a sum of positive squares in only one way, i.e., 1974025 + 83521 = 1405^2 + 289^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2057543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514385 + ... + 514388.

2^2057546 is an apocalyptic number.

2057546 is a deficient number, since it is larger than the sum of its proper divisors (1028776).

2057546 is a wasteful number, since it uses less digits than its factorization.

2057546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028775.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2057546 is about 1434.4148632805. The cubic root of 2057546 is about 127.1890873778.

The spelling of 2057546 in words is "two million, fifty-seven thousand, five hundred forty-six".