1225055770 has 16 divisors (see below), whose sum is σ = 2206793448. Its totient is φ = 489646080.

The previous prime is 1225055759. The next prime is 1225055791. The reversal of 1225055770 is 775505221.

It can be written as a sum of positive squares in 4 ways, for example, as 1202216929 + 22838841 = 34673^2 + 4779^2 .

It is a super-2 number, since 2×1225055770² = 3001523279220585800, 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 7 ways as a sum of consecutive naturals, for example, 33159 + ... + 59578.

Almost surely, 2^1225055770 is an apocalyptic number.

1225055770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225055770 is a deficient number, since it is larger than the sum of its proper divisors (981737678).

1225055770 is a wasteful number, since it uses less digits than its factorization.

1225055770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94065.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 1225055770 is about 35000.7967052180. The cubic root of 1225055770 is about 1070.0037179246.

The spelling of 1225055770 in words is "one billion, two hundred twenty-five million, fifty-five thousand, seven hundred seventy".