25452343404 has 36 divisors (see below), whose sum is σ = 64438297560. Its totient is φ = 8470871040.

The previous prime is 25452343403. The next prime is 25452343429. The reversal of 25452343404 is 40434325452.

25452343404 is a `hidden beast` number, since 2 + 54 + 523 + 43 + 40 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25452343403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528414 + ... + 574565.

It is an arithmetic number, because the mean of its divisors is an integer number (1789952710).

Almost surely, 2^25452343404 is an apocalyptic number.

It is an amenable number.

25452343404 is an abundant number, since it is smaller than the sum of its proper divisors (38985954156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25452343404 is a wasteful number, since it uses less digits than its factorization.

25452343404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103630 (or 1103625 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 25452343404 its reverse (40434325452), we get a palindrome (65886668856).

The spelling of 25452343404 in words is "twenty-five billion, four hundred fifty-two million, three hundred forty-three thousand, four hundred four".