5024123521 has 4 divisors (see below), whose sum is σ = 5024388544. Its totient is φ = 5023858500.

The previous prime is 5024123479. The next prime is 5024123537. The reversal of 5024123521 is 1253214205.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1253214205 = 5 ⋅250642841.

It is a cyclic number.

It is not a de Polignac number, because 5024123521 - 2¹³ = 5024115329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5024123561) 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, 101685 + ... + 142786.

It is an arithmetic number, because the mean of its divisors is an integer number (1256097136).

Almost surely, 2^5024123521 is an apocalyptic number.

It is an amenable number.

5024123521 is a deficient number, since it is larger than the sum of its proper divisors (265023).

5024123521 is a wasteful number, since it uses less digits than its factorization.

5024123521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265022.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5024123521 is about 70881.0519179844. The cubic root of 5024123521 is about 1712.7215784897.

Adding to 5024123521 its reverse (1253214205), we get a palindrome (6277337726).

The spelling of 5024123521 in words is "five billion, twenty-four million, one hundred twenty-three thousand, five hundred twenty-one".