5042540402 has 4 divisors (see below), whose sum is σ = 7563810606. Its totient is φ = 2521270200.

The previous prime is 5042540389. The next prime is 5042540413. The reversal of 5042540402 is 2040452405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2040452405 = 5 ⋅408090481.

It can be written as a sum of positive squares in only one way, i.e., 3080139001 + 1962401401 = 55499^2 + 44299^2 .

It is an unprimeable number.

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, 1260635099 + ... + 1260635102.

Almost surely, 2^5042540402 is an apocalyptic number.

5042540402 is a deficient number, since it is larger than the sum of its proper divisors (2521270204).

5042540402 is a wasteful number, since it uses less digits than its factorization.

5042540402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521270203.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 5042540402 is about 71010.8470728240. The cubic root of 5042540402 is about 1714.8117955122.

Adding to 5042540402 its reverse (2040452405), we get a palindrome (7082992807).

The spelling of 5042540402 in words is "five billion, forty-two million, five hundred forty thousand, four hundred two".