1255141555 has 8 divisors (see below), whose sum is σ = 1508229072. Its totient is φ = 1002740448.

The previous prime is 1255141553. The next prime is 1255141561. The reversal of 1255141555 is 5551415521.

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 1255141555 - 2¹ = 1255141553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255141555.

It is not an unprimeable number, because it can be changed into a prime (1255141553) 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, 167569 + ... + 174898.

It is an arithmetic number, because the mean of its divisors is an integer number (188528634).

Almost surely, 2^1255141555 is an apocalyptic number.

1255141555 is a deficient number, since it is larger than the sum of its proper divisors (253087517).

1255141555 is an equidigital number, since it uses as much as digits as its factorization.

1255141555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343205.

The product of its digits is 25000, while the sum is 34.

The square root of 1255141555 is about 35427.9770097024. The cubic root of 1255141555 is about 1078.6922772023.

The spelling of 1255141555 in words is "one billion, two hundred fifty-five million, one hundred forty-one thousand, five hundred fifty-five".