2512155515 has 8 divisors (see below), whose sum is σ = 3096062160. Its totient is φ = 1955407392.

The previous prime is 2512155491. The next prime is 2512155517. The reversal of 2512155515 is 5155512152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2512155515 - 2²⁴ = 2495378299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2512155517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6789425 + ... + 6789794.

It is an arithmetic number, because the mean of its divisors is an integer number (387007770).

Almost surely, 2^2512155515 is an apocalyptic number.

2512155515 is a deficient number, since it is larger than the sum of its proper divisors (583906645).

2512155515 is a wasteful number, since it uses less digits than its factorization.

2512155515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13579261.

The product of its digits is 12500, while the sum is 32.

The square root of 2512155515 is about 50121.4077515786. The cubic root of 2512155515 is about 1359.4049290737.

Adding to 2512155515 its reverse (5155512152), we get a palindrome (7667667667).

The spelling of 2512155515 in words is "two billion, five hundred twelve million, one hundred fifty-five thousand, five hundred fifteen".