1255501555441 has 8 divisors (see below), whose sum is σ = 1519262386560. Its totient is φ = 1012841590848.

The previous prime is 1255501555439. The next prime is 1255501555447. The reversal of 1255501555441 is 1445551055521.

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 1255501555441 - 2¹ = 1255501555439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255501555447) 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, 5275216501 + ... + 5275216738.

It is an arithmetic number, because the mean of its divisors is an integer number (189907798320).

Almost surely, 2^{1255501555441} is an apocalyptic number.

It is an amenable number.

1255501555441 is a deficient number, since it is larger than the sum of its proper divisors (263760831119).

1255501555441 is a wasteful number, since it uses less digits than its factorization.

1255501555441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550433263.

The product of its (nonzero) digits is 500000, while the sum is 43.

The spelling of 1255501555441 in words is "one trillion, two hundred fifty-five billion, five hundred one million, five hundred fifty-five thousand, four hundred forty-one".