2557106 has 8 divisors (see below), whose sum is σ = 4061340. Its totient is φ = 1203328.

The previous prime is 2557099. The next prime is 2557111. The reversal of 2557106 is 6017552.

It can be written as a sum of positive squares in 2 ways, for example, as 2146225 + 410881 = 1465^2 + 641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37571 + ... + 37638.

2^2557106 is an apocalyptic number.

2557106 is a deficient number, since it is larger than the sum of its proper divisors (1504234).

2557106 is a wasteful number, since it uses less digits than its factorization.

2557106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75228.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2557106 is about 1599.0953692635. The cubic root of 2557106 is about 136.7465076473.

The spelling of 2557106 in words is "two million, five hundred fifty-seven thousand, one hundred six".