1255745000 has 40 divisors (see below), whose sum is σ = 2942222250. Its totient is φ = 502296000.

The previous prime is 1255744999. The next prime is 1255745009. The reversal of 1255745000 is 5475521.

It can be written as a sum of positive squares in 5 ways, for example, as 125037124 + 1130707876 = 11182^2 + 33626^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1255745009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 120575 + ... + 130574.

Almost surely, 2^1255745000 is an apocalyptic number.

1255745000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255745000 is an abundant number, since it is smaller than the sum of its proper divisors (1686477250).

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

1255745000 is an equidigital number, since it uses as much as digits as its factorization.

1255745000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251175 (or 251156 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 1255745000 is about 35436.4924900871. The cubic root of 1255745000 is about 1078.8651201693.

The spelling of 1255745000 in words is "one billion, two hundred fifty-five million, seven hundred forty-five thousand".