1225025105 has 16 divisors (see below), whose sum is σ = 1530954000. Its totient is φ = 939859200.

The previous prime is 1225025069. The next prime is 1225025143. The reversal of 1225025105 is 5015205221.

It can be written as a sum of positive squares in 8 ways, for example, as 50523664 + 1174501441 = 7108^2 + 34271^2 .

It is not a de Polignac number, because 1225025105 - 2⁸ = 1225024849 is a prime.

It is a super-2 number, since 2×1225025105² = 3001373015760522050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6746 + ... + 49955.

It is an arithmetic number, because the mean of its divisors is an integer number (95684625).

Almost surely, 2^1225025105 is an apocalyptic number.

It is an amenable number.

1225025105 is a deficient number, since it is larger than the sum of its proper divisors (305928895).

1225025105 is a wasteful number, since it uses less digits than its factorization.

1225025105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56884.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1225025105 is about 35000.3586410197. The cubic root of 1225025105 is about 1069.9947899126.

The spelling of 1225025105 in words is "one billion, two hundred twenty-five million, twenty-five thousand, one hundred five".