2255685137 has 6 divisors (see below), whose sum is σ = 2388579858. Its totient is φ = 2122813472.

The previous prime is 2255685101. The next prime is 2255685143. The reversal of 2255685137 is 7315865522.

It can be written as a sum of positive squares in only one way, i.e., 2122997776 + 132687361 = 46076^2 + 11519^2 .

It is not a de Polignac number, because 2255685137 - 2¹² = 2255681041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255685167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190064 + ... + 201582.

It is an arithmetic number, because the mean of its divisors is an integer number (398096643).

Almost surely, 2^2255685137 is an apocalyptic number.

It is an amenable number.

2255685137 is a deficient number, since it is larger than the sum of its proper divisors (132894721).

2255685137 is an frugal number, since it uses more digits than its factorization.

2255685137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055 (or 11536 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The square root of 2255685137 is about 47494.0537014898. The cubic root of 2255685137 is about 1311.4734187823.

The spelling of 2255685137 in words is "two billion, two hundred fifty-five million, six hundred eighty-five thousand, one hundred thirty-seven".