25838579475 has 48 divisors (see below), whose sum is σ = 48271017600. Its totient is φ = 13546985760.

The previous prime is 25838579467. The next prime is 25838579489. The reversal of 25838579475 is 57497583852.

25838579475 is a `hidden beast` number, since 2 + 5 + 83 + 85 + 7 + 9 + 475 = 666.

It is not a de Polignac number, because 25838579475 - 2³ = 25838579467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284577 + ... + 364226.

It is an arithmetic number, because the mean of its divisors is an integer number (1005646200).

Almost surely, 2^25838579475 is an apocalyptic number.

25838579475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25838579475 is a deficient number, since it is larger than the sum of its proper divisors (22432438125).

25838579475 is a wasteful number, since it uses less digits than its factorization.

25838579475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648881 (or 648870 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 63.

The spelling of 25838579475 in words is "twenty-five billion, eight hundred thirty-eight million, five hundred seventy-nine thousand, four hundred seventy-five".