25160561255542 has 4 divisors (see below), whose sum is σ = 37740841883316. Its totient is φ = 12580280627770.

The previous prime is 25160561255519. The next prime is 25160561255549. The reversal of 25160561255542 is 24555216506152.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25160561255549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290140313884 + ... + 6290140313887.

It is an arithmetic number, because the mean of its divisors is an integer number (9435210470829).

Almost surely, 2^{25160561255542} is an apocalyptic number.

25160561255542 is a deficient number, since it is larger than the sum of its proper divisors (12580280627774).

25160561255542 is a wasteful number, since it uses less digits than its factorization.

25160561255542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12580280627773.

The product of its (nonzero) digits is 3600000, while the sum is 49.

The spelling of 25160561255542 in words is "twenty-five trillion, one hundred sixty billion, five hundred sixty-one million, two hundred fifty-five thousand, five hundred forty-two".