25277509912157 has 16 divisors (see below), whose sum is σ = 26285606304000. Its totient is φ = 24278520075264.

The previous prime is 25277509912121. The next prime is 25277509912163. The reversal of 25277509912157 is 75121990577252.

It is a cyclic number.

It is not a de Polignac number, because 25277509912157 - 2¹⁰ = 25277509911133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25277509912157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25277509912657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190449944 + ... + 190582622.

It is an arithmetic number, because the mean of its divisors is an integer number (1642850394000).

Almost surely, 2^{25277509912157} is an apocalyptic number.

It is an amenable number.

25277509912157 is a deficient number, since it is larger than the sum of its proper divisors (1008096391843).

25277509912157 is a wasteful number, since it uses less digits than its factorization.

25277509912157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166940.

The product of its (nonzero) digits is 27783000, while the sum is 62.

The spelling of 25277509912157 in words is "twenty-five trillion, two hundred seventy-seven billion, five hundred nine million, nine hundred twelve thousand, one hundred fifty-seven".