5212023409 has 4 divisors (see below), whose sum is σ = 5212546416. Its totient is φ = 5211500404.

The previous prime is 5212023391. The next prime is 5212023431. The reversal of 5212023409 is 9043202125.

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 not a de Polignac number, because 5212023409 - 2⁹ = 5212022897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5212023709) 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, 246259 + ... + 266584.

It is an arithmetic number, because the mean of its divisors is an integer number (1303136604).

Almost surely, 2^5212023409 is an apocalyptic number.

It is an amenable number.

5212023409 is a deficient number, since it is larger than the sum of its proper divisors (523007).

5212023409 is a wasteful number, since it uses less digits than its factorization.

5212023409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523006.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 5212023409 is about 72194.3447161895. The cubic root of 5212023409 is about 1733.8124581268.

The spelling of 5212023409 in words is "five billion, two hundred twelve million, twenty-three thousand, four hundred nine".