25414435243 has 16 divisors (see below), whose sum is σ = 27330960384. Its totient is φ = 23545272960.

The previous prime is 25414435237. The next prime is 25414435247. The reversal of 25414435243 is 34253441452.

It is a cyclic number.

It is not a de Polignac number, because 25414435243 - 2¹⁷ = 25414304171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25414435247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713646 + ... + 1728412.

It is an arithmetic number, because the mean of its divisors is an integer number (1708185024).

Almost surely, 2^25414435243 is an apocalyptic number.

25414435243 is a deficient number, since it is larger than the sum of its proper divisors (1916525141).

25414435243 is a wasteful number, since it uses less digits than its factorization.

25414435243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16362.

The product of its digits is 230400, while the sum is 37.

Adding to 25414435243 its reverse (34253441452), we get a palindrome (59667876695).

The spelling of 25414435243 in words is "twenty-five billion, four hundred fourteen million, four hundred thirty-five thousand, two hundred forty-three".