1255013226560 has 56 divisors (see below), whose sum is σ = 2996512595736. Its totient is φ = 500659384320.

The previous prime is 1255013226427. The next prime is 1255013226563. The reversal of 1255013226560 is 656223105521.

It can be written as a sum of positive squares in 4 ways, for example, as 123206616064 + 1131806610496 = 351008^2 + 1063864^2 .

It is not an unprimeable number, because it can be changed into a prime (1255013226563) 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, 5137901 + ... + 5376620.

Almost surely, 2^{1255013226560} is an apocalyptic number.

1255013226560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255013226560 is an abundant number, since it is smaller than the sum of its proper divisors (1741499369176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255013226560 is a wasteful number, since it uses less digits than its factorization.

1255013226560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514911 (or 10514901 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1255013226560 in words is "one trillion, two hundred fifty-five billion, thirteen million, two hundred twenty-six thousand, five hundred sixty".