25324043143 has 18 divisors (see below), whose sum is σ = 30509471616. Its totient is φ = 20957794704.

The previous prime is 25324043123. The next prime is 25324043153. The reversal of 25324043143 is 34134042352.

It is a happy number.

It is not a de Polignac number, because 25324043143 - 2²¹ = 25321945991 is a prime.

It is a super-2 number, since 2×25324043143² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25324043113) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 266055 + ... + 348472.

Almost surely, 2^25324043143 is an apocalyptic number.

25324043143 is a deficient number, since it is larger than the sum of its proper divisors (5185428473).

25324043143 is an equidigital number, since it uses as much as digits as its factorization.

25324043143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614599 (or 614563 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 25324043143 its reverse (34134042352), we get a palindrome (59458085495).

The spelling of 25324043143 in words is "twenty-five billion, three hundred twenty-four million, forty-three thousand, one hundred forty-three".