25400154612 has 24 divisors (see below), whose sum is σ = 67733745856. Its totient is φ = 7257187008.

The previous prime is 25400154607. The next prime is 25400154641. The reversal of 25400154612 is 21645100452.

It is a self number, because there is not a number n which added to its sum of digits gives 25400154612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151191313 + ... + 151191480.

Almost surely, 2^25400154612 is an apocalyptic number.

It is an amenable number.

25400154612 is an abundant number, since it is smaller than the sum of its proper divisors (42333591244).

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

25400154612 is a wasteful number, since it uses less digits than its factorization.

25400154612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302382807 (or 302382805 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 25400154612 in words is "twenty-five billion, four hundred million, one hundred fifty-four thousand, six hundred twelve".