2558542 has 16 divisors (see below), whose sum is σ = 4423680. Its totient is φ = 1087128.

The previous prime is 2558533. The next prime is 2558581. The reversal of 2558542 is 2458552.

It is a super-2 number, since 2×2558542² = 13092274331528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059 + ... + 2497.

It is an arithmetic number, because the mean of its divisors is an integer number (276480).

2^2558542 is an apocalyptic number.

2558542 is a deficient number, since it is larger than the sum of its proper divisors (1865138).

2558542 is a wasteful number, since it uses less digits than its factorization.

2558542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575.

The product of its digits is 16000, while the sum is 31.

The square root of 2558542 is about 1599.5443101084. The cubic root of 2558542 is about 136.7721005426.

The spelling of 2558542 in words is "two million, five hundred fifty-eight thousand, five hundred forty-two".