25240424534 has 16 divisors (see below), whose sum is σ = 40783992480. Its totient is φ = 11646284160.

The previous prime is 25240424519. The next prime is 25240424537. The reversal of 25240424534 is 43542404252.

It is a junction number, because it is equal to n+sod(n) for n = 25240424494 and 25240424503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25240424537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31274 + ... + 226845.

It is an arithmetic number, because the mean of its divisors is an integer number (2548999530).

Almost surely, 2^25240424534 is an apocalyptic number.

25240424534 is a deficient number, since it is larger than the sum of its proper divisors (15543567946).

25240424534 is a wasteful number, since it uses less digits than its factorization.

25240424534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261895.

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 25240424534 its reverse (43542404252), we get a palindrome (68782828786).

The spelling of 25240424534 in words is "twenty-five billion, two hundred forty million, four hundred twenty-four thousand, five hundred thirty-four".