5278232021 has 4 divisors (see below), whose sum is σ = 5304756000. Its totient is φ = 5251708044.

The previous prime is 5278231991. The next prime is 5278232033. The reversal of 5278232021 is 1202328725.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5278232021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278232051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13261691 + ... + 13262088.

It is an arithmetic number, because the mean of its divisors is an integer number (1326189000).

Almost surely, 2^5278232021 is an apocalyptic number.

It is an amenable number.

5278232021 is a deficient number, since it is larger than the sum of its proper divisors (26523979).

5278232021 is a wasteful number, since it uses less digits than its factorization.

5278232021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26523978.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 5278232021 is about 72651.4419746780. The cubic root of 5278232021 is about 1741.1231596664.

The spelling of 5278232021 in words is "five billion, two hundred seventy-eight million, two hundred thirty-two thousand, twenty-one".