2530305523 has 4 divisors (see below), whose sum is σ = 2531946928. Its totient is φ = 2528664120.

The previous prime is 2530305499. The next prime is 2530305541. The reversal of 2530305523 is 3255030352.

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

It is a cyclic number.

It is not a de Polignac number, because 2530305523 - 2¹³ = 2530297331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2530305491 and 2530305500.

It is not an unprimeable number, because it can be changed into a prime (2530315523) 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, 818388 + ... + 821473.

It is an arithmetic number, because the mean of its divisors is an integer number (632986732).

Almost surely, 2^2530305523 is an apocalyptic number.

2530305523 is a deficient number, since it is larger than the sum of its proper divisors (1641405).

2530305523 is a wasteful number, since it uses less digits than its factorization.

2530305523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641404.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 2530305523 is about 50302.1423301235. The cubic root of 2530305523 is about 1362.6709194777.

Adding to 2530305523 its reverse (3255030352), we get a palindrome (5785335875).

The spelling of 2530305523 in words is "two billion, five hundred thirty million, three hundred five thousand, five hundred twenty-three".