1255750240 has 48 divisors (see below), whose sum is σ = 2977300368. Its totient is φ = 500507136.

The previous prime is 1255750231. The next prime is 1255750259. The reversal of 1255750240 is 420575521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31414 + ... + 59146.

It is an arithmetic number, because the mean of its divisors is an integer number (62027091).

Almost surely, 2^1255750240 is an apocalyptic number.

1255750240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255750240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488650184).

1255750240 is an abundant number, since it is smaller than the sum of its proper divisors (1721550128).

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

1255750240 is a wasteful number, since it uses less digits than its factorization.

1255750240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28031 (or 28023 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 1255750240 is about 35436.5664250926. The cubic root of 1255750240 is about 1078.8666208045.

The spelling of 1255750240 in words is "one billion, two hundred fifty-five million, seven hundred fifty thousand, two hundred forty".