25103143401 has 64 divisors (see below), whose sum is σ = 39806976000. Its totient is φ = 14061902400.

The previous prime is 25103143379. The next prime is 25103143409. The reversal of 25103143401 is 10434130152.

It is a happy number.

It is not a de Polignac number, because 25103143401 - 2¹⁰ = 25103142377 is a prime.

It is a super-2 number, since 2×25103143401² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25103143409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27555136 + ... + 27556046.

It is an arithmetic number, because the mean of its divisors is an integer number (621984000).

Almost surely, 2^25103143401 is an apocalyptic number.

25103143401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25103143401 is a deficient number, since it is larger than the sum of its proper divisors (14703832599).

25103143401 is an equidigital number, since it uses as much as digits as its factorization.

25103143401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1421 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 25103143401 its reverse (10434130152), we get a palindrome (35537273553).

The spelling of 25103143401 in words is "twenty-five billion, one hundred three million, one hundred forty-three thousand, four hundred one".