2449657125515 has 4 divisors (see below), whose sum is σ = 2939588550624. Its totient is φ = 1959725700408.

The previous prime is 2449657125511. The next prime is 2449657125557. The reversal of 2449657125515 is 5155217569442.

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 2449657125515 - 2² = 2449657125511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2449657125511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244965712547 + ... + 244965712556.

It is an arithmetic number, because the mean of its divisors is an integer number (734897137656).

Almost surely, 2^{2449657125515} is an apocalyptic number.

2449657125515 is a deficient number, since it is larger than the sum of its proper divisors (489931425109).

2449657125515 is an equidigital number, since it uses as much as digits as its factorization.

2449657125515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489931425108.

The product of its digits is 15120000, while the sum is 56.

The spelling of 2449657125515 in words is "two trillion, four hundred forty-nine billion, six hundred fifty-seven million, one hundred twenty-five thousand, five hundred fifteen".