25435242056 has 32 divisors (see below), whose sum is σ = 54545508480. Its totient is φ = 10892534400.

The previous prime is 25435242011. The next prime is 25435242097. The reversal of 25435242056 is 65024253452.

It is a super-2 number, since 2×25435242056² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97940 + ... + 245891.

It is an arithmetic number, because the mean of its divisors is an integer number (1704547140).

Almost surely, 2^25435242056 is an apocalyptic number.

It is an amenable number.

25435242056 is an abundant number, since it is smaller than the sum of its proper divisors (29110266424).

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

25435242056 is a wasteful number, since it uses less digits than its factorization.

25435242056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345165 (or 345161 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 25435242056 in words is "twenty-five billion, four hundred thirty-five million, two hundred forty-two thousand, fifty-six".