1255500547 has 8 divisors (see below), whose sum is σ = 1436111456. Its totient is φ = 1075203072.

The previous prime is 1255500497. The next prime is 1255500553. The reversal of 1255500547 is 7450055521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255500547 - 2¹⁹ = 1254976259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255500557) 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, 69708 + ... + 85849.

It is an arithmetic number, because the mean of its divisors is an integer number (179513932).

Almost surely, 2^1255500547 is an apocalyptic number.

1255500547 is a deficient number, since it is larger than the sum of its proper divisors (180610909).

1255500547 is a wasteful number, since it uses less digits than its factorization.

1255500547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156717.

The product of its (nonzero) digits is 35000, while the sum is 34.

The square root of 1255500547 is about 35433.0431518378. The cubic root of 1255500547 is about 1078.7951088930.

The spelling of 1255500547 in words is "one billion, two hundred fifty-five million, five hundred thousand, five hundred forty-seven".