25542245485 has 16 divisors (see below), whose sum is σ = 31180956480. Its totient is φ = 20080528000.

The previous prime is 25542245473. The next prime is 25542245501. The reversal of 25542245485 is 58454224552.

It is not a de Polignac number, because 25542245485 - 2¹¹ = 25542243437 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 945729 + ... + 972361.

It is an arithmetic number, because the mean of its divisors is an integer number (1948809780).

Almost surely, 2^25542245485 is an apocalyptic number.

It is an amenable number.

25542245485 is a deficient number, since it is larger than the sum of its proper divisors (5638710995).

25542245485 is a wasteful number, since it uses less digits than its factorization.

25542245485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29948.

The product of its digits is 2560000, while the sum is 46.

The spelling of 25542245485 in words is "twenty-five billion, five hundred forty-two million, two hundred forty-five thousand, four hundred eighty-five".