25340145632 has 12 divisors (see below), whose sum is σ = 49888411776. Its totient is φ = 12670072800.

The previous prime is 25340145613. The next prime is 25340145661. The reversal of 25340145632 is 23654104352.

It is a junction number, because it is equal to n+sod(n) for n = 25340145592 and 25340145601.

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, 395939744 + ... + 395939807.

It is an arithmetic number, because the mean of its divisors is an integer number (4157367648).

Almost surely, 2^25340145632 is an apocalyptic number.

It is an amenable number.

25340145632 is a deficient number, since it is larger than the sum of its proper divisors (24548266144).

25340145632 is an equidigital number, since it uses as much as digits as its factorization.

25340145632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791879561 (or 791879553 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 25340145632 its reverse (23654104352), we get a palindrome (48994249984).

The spelling of 25340145632 in words is "twenty-five billion, three hundred forty million, one hundred forty-five thousand, six hundred thirty-two".