1255224623 has 4 divisors (see below), whose sum is σ = 1255316040. Its totient is φ = 1255133208.

The previous prime is 1255224559. The next prime is 1255224637. The reversal of 1255224623 is 3264225521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3264225521 = 1097 ⋅2975593.

It is a cyclic number.

It is not a de Polignac number, because 1255224623 - 2⁶ = 1255224559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255224623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255220623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20465 + ... + 54122.

It is an arithmetic number, because the mean of its divisors is an integer number (313829010).

Almost surely, 2^1255224623 is an apocalyptic number.

1255224623 is a deficient number, since it is larger than the sum of its proper divisors (91417).

1255224623 is an equidigital number, since it uses as much as digits as its factorization.

1255224623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91416.

The product of its digits is 28800, while the sum is 32.

The square root of 1255224623 is about 35429.1493406206. The cubic root of 1255224623 is about 1078.7160734116.

The spelling of 1255224623 in words is "one billion, two hundred fifty-five million, two hundred twenty-four thousand, six hundred twenty-three".