6557042 has 4 divisors (see below), whose sum is σ = 9835566. Its totient is φ = 3278520.

The previous prime is 6557041. The next prime is 6557059. The reversal of 6557042 is 2407556.

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., 6355441 + 201601 = 2521^2 + 449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6556996 and 6557014.

It is not an unprimeable number, because it can be changed into a prime (6557041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639259 + ... + 1639262.

Almost surely, 2^6557042 is an apocalyptic number.

6557042 is a deficient number, since it is larger than the sum of its proper divisors (3278524).

6557042 is a wasteful number, since it uses less digits than its factorization.

6557042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278523.

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

The square root of 6557042 is about 2560.6721773784. The cubic root of 6557042 is about 187.1698914552.

The spelling of 6557042 in words is "six million, five hundred fifty-seven thousand, forty-two".