2523404401 has 24 divisors (see below), whose sum is σ = 3111673320. Its totient is φ = 2033321472.

The previous prime is 2523404381. The next prime is 2523404417. The reversal of 2523404401 is 1044043252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2002652001 + 520752400 = 44751^2 + 22820^2 .

It is not a de Polignac number, because 2523404401 - 2⁵ = 2523404369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2523404431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1242655 + ... + 1244683.

It is an arithmetic number, because the mean of its divisors is an integer number (129653055).

Almost surely, 2^2523404401 is an apocalyptic number.

It is an amenable number.

2523404401 is a deficient number, since it is larger than the sum of its proper divisors (588268919).

2523404401 is a wasteful number, since it uses less digits than its factorization.

2523404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2523404401 is about 50233.4987931360. The cubic root of 2523404401 is about 1361.4309479191.

Adding to 2523404401 its reverse (1044043252), we get a palindrome (3567447653).

The spelling of 2523404401 in words is "two billion, five hundred twenty-three million, four hundred four thousand, four hundred one".