1253225615 has 16 divisors (see below), whose sum is σ = 1534256640. Its totient is φ = 982494240.

The previous prime is 1253225609. The next prime is 1253225627. The reversal of 1253225615 is 5165223521.

It is not a de Polignac number, because 1253225615 - 2⁶ = 1253225551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48716 + ... + 69854.

It is an arithmetic number, because the mean of its divisors is an integer number (95891040).

Almost surely, 2^1253225615 is an apocalyptic number.

1253225615 is a deficient number, since it is larger than the sum of its proper divisors (281031025).

1253225615 is a wasteful number, since it uses less digits than its factorization.

1253225615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21382.

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

The square root of 1253225615 is about 35400.9267534058. The cubic root of 1253225615 is about 1078.1431327231.

The spelling of 1253225615 in words is "one billion, two hundred fifty-three million, two hundred twenty-five thousand, six hundred fifteen".