1255404450 has 48 divisors (see below), whose sum is σ = 3197563200. Its totient is φ = 325725120.

The previous prime is 1255404443. The next prime is 1255404467. The reversal of 1255404450 is 544045521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107550 + ... + 118649.

It is an arithmetic number, because the mean of its divisors is an integer number (66615900).

Almost surely, 2^1255404450 is an apocalyptic number.

1255404450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255404450 is an abundant number, since it is smaller than the sum of its proper divisors (1942158750).

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

1255404450 is a wasteful number, since it uses less digits than its factorization.

1255404450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226251 (or 226246 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1255404450 is about 35431.6870893837. The cubic root of 1255404450 is about 1078.7675842485.

Adding to 1255404450 its reverse (544045521), we get a palindrome (1799449971).

The spelling of 1255404450 in words is "one billion, two hundred fifty-five million, four hundred four thousand, four hundred fifty".