5641511242 has 4 divisors (see below), whose sum is σ = 8462266866. Its totient is φ = 2820755620.

The previous prime is 5641511221. The next prime is 5641511243. The reversal of 5641511242 is 2421151465.

It is a happy number.

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., 2851453201 + 2790058041 = 53399^2 + 52821^2 .

It is a super-2 number, since 2×5641511242² = 63653298187224765128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5641511243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410377809 + ... + 1410377812.

Almost surely, 2^5641511242 is an apocalyptic number.

5641511242 is a deficient number, since it is larger than the sum of its proper divisors (2820755624).

5641511242 is a wasteful number, since it uses less digits than its factorization.

5641511242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820755623.

The product of its digits is 9600, while the sum is 31.

The square root of 5641511242 is about 75109.9942883768. The cubic root of 5641511242 is about 1780.1850628191.

The spelling of 5641511242 in words is "five billion, six hundred forty-one million, five hundred eleven thousand, two hundred forty-two".