2523404531 has 4 divisors (see below), whose sum is σ = 2523521232. Its totient is φ = 2523287832.

The previous prime is 2523404483. The next prime is 2523404581. The reversal of 2523404531 is 1354043252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2523404531 - 2¹⁸ = 2523142387 is a prime.

It is a super-2 number, since 2×2523404531² = 12735140854142659922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2523404494 and 2523404503.

It is not an unprimeable number, because it can be changed into a prime (2523404581) 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, 15356 + ... + 72681.

It is an arithmetic number, because the mean of its divisors is an integer number (630880308).

Almost surely, 2^2523404531 is an apocalyptic number.

2523404531 is a deficient number, since it is larger than the sum of its proper divisors (116701).

2523404531 is an equidigital number, since it uses as much as digits as its factorization.

2523404531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116700.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2523404531 is about 50233.5000870933. The cubic root of 2523404531 is about 1361.4309712983.

Adding to 2523404531 its reverse (1354043252), we get a palindrome (3877447783).

The spelling of 2523404531 in words is "two billion, five hundred twenty-three million, four hundred four thousand, five hundred thirty-one".