25353542651540 has 48 divisors (see below), whose sum is σ = 56112279081600. Its totient is φ = 9596068693632.

The previous prime is 25353542651537. The next prime is 25353542651551. The reversal of 25353542651540 is 4515624535352.

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, 39926144 + ... + 40556183.

It is an arithmetic number, because the mean of its divisors is an integer number (1169005814200).

Almost surely, 2^{25353542651540} is an apocalyptic number.

25353542651540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25353542651540 is an abundant number, since it is smaller than the sum of its proper divisors (30758736430060).

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

25353542651540 is a wasteful number, since it uses less digits than its factorization.

25353542651540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80483184 (or 80483182 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 50.

The spelling of 25353542651540 in words is "twenty-five trillion, three hundred fifty-three billion, five hundred forty-two million, six hundred fifty-one thousand, five hundred forty".