1255562743 has 8 divisors (see below), whose sum is σ = 1306119600. Its totient is φ = 1205490048.

The previous prime is 1255562741. The next prime is 1255562813. The reversal of 1255562743 is 3472655521.

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 1255562743 - 2¹ = 1255562741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255562696 and 1255562705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255562741) 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, 115746 + ... + 126127.

It is an arithmetic number, because the mean of its divisors is an integer number (163264950).

Almost surely, 2^1255562743 is an apocalyptic number.

1255562743 is a deficient number, since it is larger than the sum of its proper divisors (50556857).

1255562743 is a wasteful number, since it uses less digits than its factorization.

1255562743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242081.

The product of its digits is 252000, while the sum is 40.

The square root of 1255562743 is about 35433.9207963217. The cubic root of 1255562743 is about 1078.8129226733.

The spelling of 1255562743 in words is "one billion, two hundred fifty-five million, five hundred sixty-two thousand, seven hundred forty-three".