2520412042 has 4 divisors (see below), whose sum is σ = 3780618066. Its totient is φ = 1260206020.

The previous prime is 2520412021. The next prime is 2520412043. The reversal of 2520412042 is 2402140252.

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., 1591930201 + 928481841 = 39899^2 + 30471^2 .

It is a super-2 number, since 2×2520412042² = 12704953722917219528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2520412043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630103009 + ... + 630103012.

Almost surely, 2^2520412042 is an apocalyptic number.

2520412042 is a deficient number, since it is larger than the sum of its proper divisors (1260206024).

2520412042 is a wasteful number, since it uses less digits than its factorization.

2520412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260206023.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2520412042 is about 50203.7054608522. The cubic root of 2520412042 is about 1360.8925877128.

Adding to 2520412042 its reverse (2402140252), we get a palindrome (4922552294).

The spelling of 2520412042 in words is "two billion, five hundred twenty million, four hundred twelve thousand, forty-two".