1255663450 has 96 divisors (see below), whose sum is σ = 2552961600. Its totient is φ = 457850880.

The previous prime is 1255663441. The next prime is 1255663457. The reversal of 1255663450 is 543665521.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1255663457) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 4885722 + ... + 4885978.

It is an arithmetic number, because the mean of its divisors is an integer number (26593350).

Almost surely, 2^1255663450 is an apocalyptic number.

1255663450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255663450 is an abundant number, since it is smaller than the sum of its proper divisors (1297298150).

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

1255663450 is a wasteful number, since it uses less digits than its factorization.

1255663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 1255663450 is about 35435.3418214076. The cubic root of 1255663450 is about 1078.8417652803.

The spelling of 1255663450 in words is "one billion, two hundred fifty-five million, six hundred sixty-three thousand, four hundred fifty".