5235445021 has 4 divisors (see below), whose sum is σ = 5363138844. Its totient is φ = 5107751200.

The previous prime is 5235444983. The next prime is 5235445027. The reversal of 5235445021 is 1205445325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110460100 + 5124984921 = 10510^2 + 71589^2 .

It is a cyclic number.

It is not a de Polignac number, because 5235445021 - 2¹⁷ = 5235313949 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 (5235445027) 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, 63846850 + ... + 63846931.

It is an arithmetic number, because the mean of its divisors is an integer number (1340784711).

Almost surely, 2^5235445021 is an apocalyptic number.

It is an amenable number.

5235445021 is a deficient number, since it is larger than the sum of its proper divisors (127693823).

5235445021 is a wasteful number, since it uses less digits than its factorization.

5235445021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127693822.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 5235445021 is about 72356.3751234126. The cubic root of 5235445021 is about 1736.4056931825.

The spelling of 5235445021 in words is "five billion, two hundred thirty-five million, four hundred forty-five thousand, twenty-one".