1255514250 has 64 divisors (see below), whose sum is σ = 3139119360. Its totient is φ = 334232000.

The previous prime is 1255514237. The next prime is 1255514257. The reversal of 1255514250 is 524155521.

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

It is not an unprimeable number, because it can be changed into a prime (1255514257) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 614731 + ... + 616769.

It is an arithmetic number, because the mean of its divisors is an integer number (49048740).

Almost surely, 2^1255514250 is an apocalyptic number.

1255514250 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 1255514250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569559680).

1255514250 is an abundant number, since it is smaller than the sum of its proper divisors (1883605110).

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

1255514250 is a wasteful number, since it uses less digits than its factorization.

1255514250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880 (or 2870 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1255514250 is about 35433.2365160170. The cubic root of 1255514250 is about 1078.7990336691.

Adding to 1255514250 its reverse (524155521), we get a palindrome (1779669771).

The spelling of 1255514250 in words is "one billion, two hundred fifty-five million, five hundred fourteen thousand, two hundred fifty".