2424725521 has 4 divisors (see below), whose sum is σ = 2567356452. Its totient is φ = 2282094592.

The previous prime is 2424725519. The next prime is 2424725533. The reversal of 2424725521 is 1255274242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1255274242 = 2 ⋅627637121.

It can be written as a sum of positive squares in 2 ways, for example, as 1279850625 + 1144874896 = 35775^2 + 33836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2424725521 - 2¹ = 2424725519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2424725221) 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, 71315440 + ... + 71315473.

It is an arithmetic number, because the mean of its divisors is an integer number (641839113).

Almost surely, 2^2424725521 is an apocalyptic number.

It is an amenable number.

2424725521 is a deficient number, since it is larger than the sum of its proper divisors (142630931).

2424725521 is a wasteful number, since it uses less digits than its factorization.

2424725521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142630930.

The product of its digits is 44800, while the sum is 34.

The square root of 2424725521 is about 49241.5020181148. The cubic root of 2424725521 is about 1343.4480001880.

Adding to 2424725521 its reverse (1255274242), we get a palindrome (3679999763).

The spelling of 2424725521 in words is "two billion, four hundred twenty-four million, seven hundred twenty-five thousand, five hundred twenty-one".