1220567025 has 48 divisors (see below), whose sum is σ = 2044512000. Its totient is φ = 642485760.

The previous prime is 1220567009. The next prime is 1220567039. The reversal of 1220567025 is 5207650221.

It is not a de Polignac number, because 1220567025 - 2⁴ = 1220567009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220566983 and 1220567001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2670597 + ... + 2671053.

It is an arithmetic number, because the mean of its divisors is an integer number (42594000).

Almost surely, 2^1220567025 is an apocalyptic number.

1220567025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220567025 is a deficient number, since it is larger than the sum of its proper divisors (823944975).

1220567025 is a wasteful number, since it uses less digits than its factorization.

1220567025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 1220567025 is about 34936.6143894911. The cubic root of 1220567025 is about 1068.6952463314.

The spelling of 1220567025 in words is "one billion, two hundred twenty million, five hundred sixty-seven thousand, twenty-five".