2542605 has 48 divisors (see below), whose sum is σ = 4743360. Its totient is φ = 1158144.

The previous prime is 2542597. The next prime is 2542607. The reversal of 2542605 is 5062452.

It is not a de Polignac number, because 2542605 - 2³ = 2542597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43066 + ... + 43124.

It is an arithmetic number, because the mean of its divisors is an integer number (98820).

2^2542605 is an apocalyptic number.

It is an amenable number.

2542605 is a deficient number, since it is larger than the sum of its proper divisors (2200755).

2542605 is a wasteful number, since it uses less digits than its factorization.

2542605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2542605 is about 1594.5547968007. The cubic root of 2542605 is about 136.4875272050.

The spelling of 2542605 in words is "two million, five hundred forty-two thousand, six hundred five".