127635225555725 has 24 divisors (see below), whose sum is σ = 159477501120000. Its totient is φ = 101328306762240.

The previous prime is 127635225555713. The next prime is 127635225555749. The reversal of 127635225555725 is 527555522536721.

It is a happy number.

It is not a de Polignac number, because 127635225555725 - 2²² = 127635221361421 is a prime.

It is a super-2 number, since 2×127635225555725² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 421700 + ... + 15982749.

It is an arithmetic number, because the mean of its divisors is an integer number (6644895880000).

Almost surely, 2^{127635225555725} is an apocalyptic number.

It is an amenable number.

127635225555725 is a deficient number, since it is larger than the sum of its proper divisors (31842275564275).

127635225555725 is a wasteful number, since it uses less digits than its factorization.

127635225555725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406837 (or 16406832 counting only the distinct ones).

The product of its digits is 220500000, while the sum is 62.

The spelling of 127635225555725 in words is "one hundred twenty-seven trillion, six hundred thirty-five billion, two hundred twenty-five million, five hundred fifty-five thousand, seven hundred twenty-five".