25834242605555 has 16 divisors (see below), whose sum is σ = 31020530433984. Its totient is φ = 20654435809920.

The previous prime is 25834242605537. The next prime is 25834242605621. The reversal of 25834242605555 is 55550624243852.

It is not a de Polignac number, because 25834242605555 - 2¹⁰ = 25834242604531 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 25834242605555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192600722 + ... + 192734808.

It is an arithmetic number, because the mean of its divisors is an integer number (1938783152124).

Almost surely, 2^{25834242605555} is an apocalyptic number.

25834242605555 is a deficient number, since it is larger than the sum of its proper divisors (5186287828429).

25834242605555 is a wasteful number, since it uses less digits than its factorization.

25834242605555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157966.

The product of its (nonzero) digits is 57600000, while the sum is 56.

The spelling of 25834242605555 in words is "twenty-five trillion, eight hundred thirty-four billion, two hundred forty-two million, six hundred five thousand, five hundred fifty-five".