1255776450 has 48 divisors (see below), whose sum is σ = 3133492896. Its totient is φ = 332812800.

The previous prime is 1255776449. The next prime is 1255776463. The reversal of 1255776450 is 546775521.

It is a happy number.

It is a super-3 number, since 3×1255776450³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1231 + ... + 50130.

It is an arithmetic number, because the mean of its divisors is an integer number (65281102).

Almost surely, 2^1255776450 is an apocalyptic number.

1255776450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255776450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566746448).

1255776450 is an abundant number, since it is smaller than the sum of its proper divisors (1877716446).

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

1255776450 is a wasteful number, since it uses less digits than its factorization.

1255776450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51539 (or 51534 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 1255776450 is about 35436.9362389019. The cubic root of 1255776450 is about 1078.8741267815.

The spelling of 1255776450 in words is "one billion, two hundred fifty-five million, seven hundred seventy-six thousand, four hundred fifty".