5278242021 has 16 divisors (see below), whose sum is σ = 7587947136. Its totient is φ = 3244320576.

The previous prime is 5278241999. The next prime is 5278242023. The reversal of 5278242021 is 1202428725.

It is not a de Polignac number, because 5278242021 - 2¹⁹ = 5277717733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278242023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46065 + ... + 112598.

It is an arithmetic number, because the mean of its divisors is an integer number (474246696).

Almost surely, 2^5278242021 is an apocalyptic number.

It is an amenable number.

5278242021 is a deficient number, since it is larger than the sum of its proper divisors (2309705115).

5278242021 is a wasteful number, since it uses less digits than its factorization.

5278242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159532.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 5278242021 is about 72651.5107964040. The cubic root of 5278242021 is about 1741.1242592278.

The spelling of 5278242021 in words is "five billion, two hundred seventy-eight million, two hundred forty-two thousand, twenty-one".