25140006543 has 8 divisors (see below), whose sum is σ = 34601299456. Its totient is φ = 16219359000.

The previous prime is 25140006527. The next prime is 25140006581. The reversal of 25140006543 is 34560004152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25140006543 - 2⁴ = 25140006527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25140006543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140006343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135161233 + ... + 135161418.

It is an arithmetic number, because the mean of its divisors is an integer number (4325162432).

Almost surely, 2^25140006543 is an apocalyptic number.

25140006543 is a deficient number, since it is larger than the sum of its proper divisors (9461292913).

25140006543 is a wasteful number, since it uses less digits than its factorization.

25140006543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270322685.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 25140006543 in words is "twenty-five billion, one hundred forty million, six thousand, five hundred forty-three".