25606213755 has 8 divisors (see below), whose sum is σ = 40969942032. Its totient is φ = 13656647328.

The previous prime is 25606213733. The next prime is 25606213783. The reversal of 25606213755 is 55731260652.

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

It is not a de Polignac number, because 25606213755 - 2⁶ = 25606213691 is a prime.

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, 853540444 + ... + 853540473.

It is an arithmetic number, because the mean of its divisors is an integer number (5121242754).

Almost surely, 2^25606213755 is an apocalyptic number.

25606213755 is a deficient number, since it is larger than the sum of its proper divisors (15363728277).

25606213755 is a wasteful number, since it uses less digits than its factorization.

25606213755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707080925.

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 25606213755 in words is "twenty-five billion, six hundred six million, two hundred thirteen thousand, seven hundred fifty-five".