1255250442543 has 8 divisors (see below), whose sum is σ = 1673686198656. Its totient is φ = 836824157400.

The previous prime is 1255250442541. The next prime is 1255250442553. The reversal of 1255250442543 is 3452440525521.

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

It is not a de Polignac number, because 1255250442543 - 2¹ = 1255250442541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255250442495 and 1255250442504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255250442541) 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, 2052493 + ... + 2592918.

It is an arithmetic number, because the mean of its divisors is an integer number (209210774832).

Almost surely, 2^{1255250442543} is an apocalyptic number.

1255250442543 is a deficient number, since it is larger than the sum of its proper divisors (418435756113).

1255250442543 is an equidigital number, since it uses as much as digits as its factorization.

1255250442543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735485.

The product of its (nonzero) digits is 960000, while the sum is 42.

The spelling of 1255250442543 in words is "one trillion, two hundred fifty-five billion, two hundred fifty million, four hundred forty-two thousand, five hundred forty-three".