25504545705 has 8 divisors (see below), whose sum is σ = 40807273152. Its totient is φ = 13602424368.

The previous prime is 25504545673. The next prime is 25504545713. The reversal of 25504545705 is 50754540552.

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

It is not a de Polignac number, because 25504545705 - 2⁵ = 25504545673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850151509 + ... + 850151538.

It is an arithmetic number, because the mean of its divisors is an integer number (5100909144).

Almost surely, 2^25504545705 is an apocalyptic number.

It is an amenable number.

25504545705 is a deficient number, since it is larger than the sum of its proper divisors (15302727447).

25504545705 is a wasteful number, since it uses less digits than its factorization.

25504545705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700303055.

The product of its (nonzero) digits is 700000, while the sum is 42.

The spelling of 25504545705 in words is "twenty-five billion, five hundred four million, five hundred forty-five thousand, seven hundred five".