1255545963 has 18 divisors (see below), whose sum is σ = 2109659604. Its totient is φ = 717454584.

The previous prime is 1255545961. The next prime is 1255545979. The reversal of 1255545963 is 3695455521.

1255545963 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 54 + 596 + 3 = 666.

It is not a de Polignac number, because 1255545963 - 2¹ = 1255545961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255545961) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1423081 + ... + 1423962.

Almost surely, 2^1255545963 is an apocalyptic number.

1255545963 is a deficient number, since it is larger than the sum of its proper divisors (854113641).

1255545963 is a wasteful number, since it uses less digits than its factorization.

1255545963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847063 (or 2847053 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The square root of 1255545963 is about 35433.6840167657. The cubic root of 1255545963 is about 1078.8081167110.

The spelling of 1255545963 in words is "one billion, two hundred fifty-five million, five hundred forty-five thousand, nine hundred sixty-three".