1255131850 has 72 divisors (see below), whose sum is σ = 2789508960. Its totient is φ = 411560160.

The previous prime is 1255131847. The next prime is 1255131869. The reversal of 1255131850 is 581315521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181761 + ... + 188539.

It is an arithmetic number, because the mean of its divisors is an integer number (38743180).

Almost surely, 2^1255131850 is an apocalyptic number.

1255131850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255131850 is an abundant number, since it is smaller than the sum of its proper divisors (1534377110).

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

1255131850 is a wasteful number, since it uses less digits than its factorization.

1255131850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844 (or 6816 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 1255131850 is about 35427.8400414138. The cubic root of 1255131850 is about 1078.6894969752.

The spelling of 1255131850 in words is "one billion, two hundred fifty-five million, one hundred thirty-one thousand, eight hundred fifty".