1255545251 has 16 divisors (see below), whose sum is σ = 1407520800. Its totient is φ = 1112974848.

The previous prime is 1255545223. The next prime is 1255545257. The reversal of 1255545251 is 1525455521.

It is a cyclic number.

It is not a de Polignac number, because 1255545251 - 2²⁶ = 1188436387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255545257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44645 + ... + 67113.

It is an arithmetic number, because the mean of its divisors is an integer number (87970050).

Almost surely, 2^1255545251 is an apocalyptic number.

1255545251 is a deficient number, since it is larger than the sum of its proper divisors (151975549).

1255545251 is a wasteful number, since it uses less digits than its factorization.

1255545251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22678.

The product of its digits is 50000, while the sum is 35.

The square root of 1255545251 is about 35433.6739698271. The cubic root of 1255545251 is about 1078.8079127861.

The spelling of 1255545251 in words is "one billion, two hundred fifty-five million, five hundred forty-five thousand, two hundred fifty-one".