1225452725215 has 4 divisors (see below), whose sum is σ = 1470543270264. Its totient is φ = 980362180168.

The previous prime is 1225452725179. The next prime is 1225452725281. The reversal of 1225452725215 is 5125272545221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1225452725215 - 2⁷ = 1225452725087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122545272517 + ... + 122545272526.

It is an arithmetic number, because the mean of its divisors is an integer number (367635817566).

Almost surely, 2^{1225452725215} is an apocalyptic number.

1225452725215 is a deficient number, since it is larger than the sum of its proper divisors (245090545049).

1225452725215 is an equidigital number, since it uses as much as digits as its factorization.

1225452725215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245090545048.

The product of its digits is 560000, while the sum is 43.

The spelling of 1225452725215 in words is "one trillion, two hundred twenty-five billion, four hundred fifty-two million, seven hundred twenty-five thousand, two hundred fifteen".