1325225615 has 32 divisors (see below), whose sum is σ = 1961902080. Its totient is φ = 839228544.

The previous prime is 1325225611. The next prime is 1325225639. The reversal of 1325225615 is 5165225231.

It is not a de Polignac number, because 1325225615 - 2² = 1325225611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325225611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5039 + ... + 51728.

It is an arithmetic number, because the mean of its divisors is an integer number (61309440).

Almost surely, 2^1325225615 is an apocalyptic number.

1325225615 is a deficient number, since it is larger than the sum of its proper divisors (636676465).

1325225615 is a wasteful number, since it uses less digits than its factorization.

1325225615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56831.

The product of its digits is 18000, while the sum is 32.

The square root of 1325225615 is about 36403.6483748539. The cubic root of 1325225615 is about 1098.4069543585.

The spelling of 1325225615 in words is "one billion, three hundred twenty-five million, two hundred twenty-five thousand, six hundred fifteen".