1225775264 has 48 divisors (see below), whose sum is σ = 2761113600. Its totient is φ = 524738304.

The previous prime is 1225775263. The next prime is 1225775273. The reversal of 1225775264 is 4625775221.

It is a hoax number, since the sum of its digits (41) 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 (1225775261) 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, 236897 + ... + 242015.

It is an arithmetic number, because the mean of its divisors is an integer number (57523200).

Almost surely, 2^1225775264 is an apocalyptic number.

1225775264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1225775264 is an abundant number, since it is smaller than the sum of its proper divisors (1535338336).

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

1225775264 is a wasteful number, since it uses less digits than its factorization.

1225775264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205 (or 6197 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 1225775264 is about 35011.0734482678. The cubic root of 1225775264 is about 1070.2131534474.

The spelling of 1225775264 in words is "one billion, two hundred twenty-five million, seven hundred seventy-five thousand, two hundred sixty-four".