2215525625 has 10 divisors (see below), whose sum is σ = 2768521602. Its totient is φ = 1772420000.

The previous prime is 2215525603. The next prime is 2215525699. The reversal of 2215525625 is 5265255122.

It can be written as a sum of positive squares in 5 ways, for example, as 682881424 + 1532644201 = 26132^2 + 39149^2 .

It is not a de Polignac number, because 2215525625 - 2¹⁰ = 2215524601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1771796 + ... + 1773045.

Almost surely, 2^2215525625 is an apocalyptic number.

2215525625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215525625 is a deficient number, since it is larger than the sum of its proper divisors (552995977).

2215525625 is an frugal number, since it uses more digits than its factorization.

2215525625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544861 (or 3544846 counting only the distinct ones).

The product of its digits is 60000, while the sum is 35.

The square root of 2215525625 is about 47069.3703484548. The cubic root of 2215525625 is about 1303.6437468927.

The spelling of 2215525625 in words is "two billion, two hundred fifteen million, five hundred twenty-five thousand, six hundred twenty-five".