25115420132 has 24 divisors (see below), whose sum is σ = 47951837472. Its totient is φ = 11415096000.

The previous prime is 25115420107. The next prime is 25115420179. The reversal of 25115420132 is 23102451152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749243 + ... + 782045.

It is an arithmetic number, because the mean of its divisors is an integer number (1997993228).

Almost surely, 2^25115420132 is an apocalyptic number.

25115420132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25115420132 is a deficient number, since it is larger than the sum of its proper divisors (22836417340).

25115420132 is a wasteful number, since it uses less digits than its factorization.

25115420132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50219 (or 50217 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 25115420132 its reverse (23102451152), we get a palindrome (48217871284).

The spelling of 25115420132 in words is "twenty-five billion, one hundred fifteen million, four hundred twenty thousand, one hundred thirty-two".