1254550655 has 4 divisors (see below), whose sum is σ = 1505460792. Its totient is φ = 1003640520.

The previous prime is 1254550631. The next prime is 1254550681. The reversal of 1254550655 is 5560554521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5560554521 = 41 ⋅135623281.

It is not a de Polignac number, because 1254550655 - 2¹⁰ = 1254549631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125455061 + ... + 125455070.

It is an arithmetic number, because the mean of its divisors is an integer number (376365198).

Almost surely, 2^1254550655 is an apocalyptic number.

1254550655 is a deficient number, since it is larger than the sum of its proper divisors (250910137).

1254550655 is an equidigital number, since it uses as much as digits as its factorization.

1254550655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250910136.

The product of its (nonzero) digits is 150000, while the sum is 38.

The square root of 1254550655 is about 35419.6365735167. The cubic root of 1254550655 is about 1078.5229737704.

The spelling of 1254550655 in words is "one billion, two hundred fifty-four million, five hundred fifty thousand, six hundred fifty-five".