1256554426224 has 80 divisors (see below), whose sum is σ = 3254470700544. Its totient is φ = 417771763200.

The previous prime is 1256554426223. The next prime is 1256554426241. The reversal of 1256554426224 is 4226244556521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256554426223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144211692 + ... + 144220404.

Almost surely, 2^{1256554426224} is an apocalyptic number.

It is an amenable number.

1256554426224 is an abundant number, since it is smaller than the sum of its proper divisors (1997916274320).

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

1256554426224 is a wasteful number, since it uses less digits than its factorization.

1256554426224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126 (or 16120 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 48.

The spelling of 1256554426224 in words is "one trillion, two hundred fifty-six billion, five hundred fifty-four million, four hundred twenty-six thousand, two hundred twenty-four".