25545413412 has 36 divisors (see below), whose sum is σ = 64594792080. Its totient is φ = 8512281072.

The previous prime is 25545413407. The next prime is 25545413429. The reversal of 25545413412 is 21431454552.

25545413412 is a `hidden beast` number, since 2 + 554 + 54 + 13 + 41 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8838 + ... + 226205.

It is an arithmetic number, because the mean of its divisors is an integer number (1794299780).

Almost surely, 2^25545413412 is an apocalyptic number.

It is an amenable number.

25545413412 is an abundant number, since it is smaller than the sum of its proper divisors (39049378668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25545413412 is a wasteful number, since it uses less digits than its factorization.

25545413412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238072 (or 238067 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 25545413412 its reverse (21431454552), we get a palindrome (46976867964).

The spelling of 25545413412 in words is "twenty-five billion, five hundred forty-five million, four hundred thirteen thousand, four hundred twelve".