25857270061288 has 32 divisors (see below), whose sum is σ = 50283515646720. Its totient is φ = 12452285664000.

The previous prime is 25857270061283. The next prime is 25857270061333. The reversal of 25857270061288 is 88216007275852.

It is not an unprimeable number, because it can be changed into a prime (25857270061283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247016833 + ... + 247121488.

It is an arithmetic number, because the mean of its divisors is an integer number (1571359863960).

Almost surely, 2^{25857270061288} is an apocalyptic number.

It is an amenable number.

25857270061288 is a deficient number, since it is larger than the sum of its proper divisors (24426245585432).

25857270061288 is a wasteful number, since it uses less digits than its factorization.

25857270061288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494138569 (or 494138565 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 61.

The spelling of 25857270061288 in words is "twenty-five trillion, eight hundred fifty-seven billion, two hundred seventy million, sixty-one thousand, two hundred eighty-eight".