1255223536 has 40 divisors (see below), whose sum is σ = 2782009440. Its totient is φ = 537452544.

The previous prime is 1255223533. The next prime is 1255223537. The reversal of 1255223536 is 6353225521.

It is a super-2 number, since 2×1255223536² = 3151172250656686592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255223533) 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 7 ways as a sum of consecutive naturals, for example, 131700 + ... + 140908.

It is an arithmetic number, because the mean of its divisors is an integer number (69550236).

Almost surely, 2^1255223536 is an apocalyptic number.

1255223536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1255223536 is an abundant number, since it is smaller than the sum of its proper divisors (1526785904).

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

1255223536 is a wasteful number, since it uses less digits than its factorization.

1255223536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10441 (or 10435 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 1255223536 is about 35429.1340001417. The cubic root of 1255223536 is about 1078.7157620292.

The spelling of 1255223536 in words is "one billion, two hundred fifty-five million, two hundred twenty-three thousand, five hundred thirty-six".