2505042 has 12 divisors (see below), whose sum is σ = 5427630. Its totient is φ = 835008.

The previous prime is 2505007. The next prime is 2505043. The reversal of 2505042 is 2405052.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 281961 = 1491^2 + 531^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 139169 = 2505042 / (2 + 5 + 0 + 5 + 0 + 4 + 2).

It is a d-powerful number, because it can be written as 2¹⁴ + 5⁴ + 0 + 5⁸ + 0 + 4⁴ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (2505043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69567 + ... + 69602.

2^2505042 is an apocalyptic number.

2505042 is an abundant number, since it is smaller than the sum of its proper divisors (2922588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505042 is a wasteful number, since it uses less digits than its factorization.

2505042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139177 (or 139174 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2505042 is about 1582.7324473833. The cubic root of 2505042 is about 135.8120601845.

The spelling of 2505042 in words is "two million, five hundred five thousand, forty-two".