25694005890 has 64 divisors (see below), whose sum is σ = 70525128960. Its totient is φ = 5868737280.

The previous prime is 25694005837. The next prime is 25694005901. The reversal of 25694005890 is 9850049652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257280 + ... + 342900.

It is an arithmetic number, because the mean of its divisors is an integer number (1101955140).

Almost surely, 2^25694005890 is an apocalyptic number.

25694005890 is an abundant number, since it is smaller than the sum of its proper divisors (44831123070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25694005890 is a wasteful number, since it uses less digits than its factorization.

25694005890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87067.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 25694005890 in words is "twenty-five billion, six hundred ninety-four million, five thousand, eight hundred ninety".