1255455421110 has 64 divisors (see below), whose sum is σ = 3652233960960. Its totient is φ = 304352828640.

The previous prime is 1255455421027. The next prime is 1255455421117. The reversal of 1255455421110 is 111245545521.

1255455421110 is a `hidden beast` number, since 1 + 2 + 55 + 45 + 542 + 11 + 10 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255455421117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211353162 + ... + 211359101.

It is an arithmetic number, because the mean of its divisors is an integer number (57066155640).

Almost surely, 2^{1255455421110} is an apocalyptic number.

1255455421110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255455421110 is an abundant number, since it is smaller than the sum of its proper divisors (2396778539850).

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

1255455421110 is a wasteful number, since it uses less digits than its factorization.

1255455421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422712290 (or 422712284 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The spelling of 1255455421110 in words is "one trillion, two hundred fifty-five billion, four hundred fifty-five million, four hundred twenty-one thousand, one hundred ten".