25234415440401 has 32 divisors (see below), whose sum is σ = 34751450321280. Its totient is φ = 16277659582464.

The previous prime is 25234415440397. The next prime is 25234415440447. The reversal of 25234415440401 is 10404451443252.

It is not a de Polignac number, because 25234415440401 - 2² = 25234415440397 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25234415440401.

It is not an unprimeable number, because it can be changed into a prime (25234415444401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27077745 + ... + 27994161.

It is an arithmetic number, because the mean of its divisors is an integer number (1085982822540).

Almost surely, 2^{25234415440401} is an apocalyptic number.

It is an amenable number.

25234415440401 is a deficient number, since it is larger than the sum of its proper divisors (9517034880879).

25234415440401 is a wasteful number, since it uses less digits than its factorization.

25234415440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918465.

The product of its (nonzero) digits is 307200, while the sum is 39.

Adding to 25234415440401 its reverse (10404451443252), we get a palindrome (35638866883653).

The spelling of 25234415440401 in words is "twenty-five trillion, two hundred thirty-four billion, four hundred fifteen million, four hundred forty thousand, four hundred one".