1255327816 has 32 divisors (see below), whose sum is σ = 2368583640. Its totient is φ = 623720448.

The previous prime is 1255327807. The next prime is 1255327819. The reversal of 1255327816 is 6187235521.

It can be written as a sum of positive squares in 4 ways, for example, as 792647716 + 462680100 = 28154^2 + 21510^2 .

It is not an unprimeable number, because it can be changed into a prime (1255327819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143780 + ... + 1144876.

Almost surely, 2^1255327816 is an apocalyptic number.

It is an amenable number.

1255327816 is a deficient number, since it is larger than the sum of its proper divisors (1113255824).

1255327816 is a wasteful number, since it uses less digits than its factorization.

1255327816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1869 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 1255327816 is about 35430.6056397573. The cubic root of 1255327816 is about 1078.7456332995.

The spelling of 1255327816 in words is "one billion, two hundred fifty-five million, three hundred twenty-seven thousand, eight hundred sixteen".