25642336054 has 8 divisors (see below), whose sum is σ = 38495911608. Its totient is φ = 12810365520.

The previous prime is 25642336039. The next prime is 25642336079. The reversal of 25642336054 is 45063324652.

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

It is a junction number, because it is equal to n+sod(n) for n = 25642335998 and 25642336016.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5398287 + ... + 5403034.

It is an arithmetic number, because the mean of its divisors is an integer number (4811988951).

Almost surely, 2^25642336054 is an apocalyptic number.

25642336054 is a deficient number, since it is larger than the sum of its proper divisors (12853575554).

25642336054 is a wasteful number, since it uses less digits than its factorization.

25642336054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802510.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 25642336054 in words is "twenty-five billion, six hundred forty-two million, three hundred thirty-six thousand, fifty-four".