25435321532 has 6 divisors (see below), whose sum is σ = 44511812688. Its totient is φ = 12717660764.

The previous prime is 25435321523. The next prime is 25435321543. The reversal of 25435321532 is 23512353452.

It is a junction number, because it is equal to n+sod(n) for n = 25435321492 and 25435321501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3179415188 + ... + 3179415195.

It is an arithmetic number, because the mean of its divisors is an integer number (7418635448).

Almost surely, 2^25435321532 is an apocalyptic number.

It is an amenable number.

25435321532 is a deficient number, since it is larger than the sum of its proper divisors (19076491156).

25435321532 is a wasteful number, since it uses less digits than its factorization.

25435321532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358830387 (or 6358830385 counting only the distinct ones).

The product of its digits is 108000, while the sum is 35.

Adding to 25435321532 its reverse (23512353452), we get a palindrome (48947674984).

The spelling of 25435321532 in words is "twenty-five billion, four hundred thirty-five million, three hundred twenty-one thousand, five hundred thirty-two".