275525601381 has 8 divisors (see below), whose sum is σ = 408186076160. Its totient is φ = 183683734236.

The previous prime is 275525601353. The next prime is 275525601413. The reversal of 275525601381 is 183106525572.

275525601381 is a `hidden beast` number, since 2 + 7 + 5 + 5 + 2 + 5 + 601 + 38 + 1 = 666.

It is not a de Polignac number, because 275525601381 - 2⁶ = 275525601317 is a prime.

It is a super-2 number, since 2×275525601381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275520601381) 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, 5102325925 + ... + 5102325978.

It is an arithmetic number, because the mean of its divisors is an integer number (51023259520).

Almost surely, 2^275525601381 is an apocalyptic number.

It is an amenable number.

275525601381 is a deficient number, since it is larger than the sum of its proper divisors (132660474779).

275525601381 is a wasteful number, since it uses less digits than its factorization.

275525601381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204651912 (or 10204651906 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 275525601381 in words is "two hundred seventy-five billion, five hundred twenty-five million, six hundred one thousand, three hundred eighty-one".