1255669349 has 8 divisors (see below), whose sum is σ = 1370133792. Its totient is φ = 1141257040.

The previous prime is 1255669301. The next prime is 1255669367. The reversal of 1255669349 is 9439665521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255669349 - 2¹² = 1255665253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255669297 and 1255669306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255669379) 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, 51062 + ... + 71544.

It is an arithmetic number, because the mean of its divisors is an integer number (171266724).

Almost surely, 2^1255669349 is an apocalyptic number.

It is an amenable number.

1255669349 is a deficient number, since it is larger than the sum of its proper divisors (114464443).

1255669349 is a wasteful number, since it uses less digits than its factorization.

1255669349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26067.

The product of its digits is 1749600, while the sum is 50.

The square root of 1255669349 is about 35435.4250574196. The cubic root of 1255669349 is about 1078.8434547133.

The spelling of 1255669349 in words is "one billion, two hundred fifty-five million, six hundred sixty-nine thousand, three hundred forty-nine".