1225055002 has 4 divisors (see below), whose sum is σ = 1837582506. Its totient is φ = 612527500.

The previous prime is 1225054981. The next prime is 1225055063. The reversal of 1225055002 is 2005505221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1197921321 + 27133681 = 34611^2 + 5209^2 .

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 as a sum of consecutive naturals, namely, 306263749 + ... + 306263752.

Almost surely, 2^1225055002 is an apocalyptic number.

1225055002 is a deficient number, since it is larger than the sum of its proper divisors (612527504).

1225055002 is an equidigital number, since it uses as much as digits as its factorization.

1225055002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612527503.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 1225055002 is about 35000.7857340375. The cubic root of 1225055002 is about 1070.0034943258.

The spelling of 1225055002 in words is "one billion, two hundred twenty-five million, fifty-five thousand, two".