1255563364 has 48 divisors (see below), whose sum is σ = 2531966976. Its totient is φ = 539431200.

The previous prime is 1255563349. The next prime is 1255563389. The reversal of 1255563364 is 4633655521.

It is a super-2 number, since 2×1255563364² = 3152878722037992992, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47949 + ... + 69355.

It is an arithmetic number, because the mean of its divisors is an integer number (52749312).

Almost surely, 2^1255563364 is an apocalyptic number.

It is an amenable number.

1255563364 is an abundant number, since it is smaller than the sum of its proper divisors (1276403612).

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

1255563364 is a wasteful number, since it uses less digits than its factorization.

1255563364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21496 (or 21494 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

The square root of 1255563364 is about 35433.9295591104. The cubic root of 1255563364 is about 1078.8131005332.

The spelling of 1255563364 in words is "one billion, two hundred fifty-five million, five hundred sixty-three thousand, three hundred sixty-four".