2500522515 has 32 divisors (see below), whose sum is σ = 4473725760. Its totient is φ = 1325106432.

The previous prime is 2500522511. The next prime is 2500522543. The reversal of 2500522515 is 5152250052.

It is not a de Polignac number, because 2500522515 - 2² = 2500522511 is a prime.

It is a super-2 number, since 2×2500522515² = 12505225696043850450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2500522511) 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, 37794 + ... + 80183.

It is an arithmetic number, because the mean of its divisors is an integer number (139803930).

Almost surely, 2^2500522515 is an apocalyptic number.

2500522515 is a deficient number, since it is larger than the sum of its proper divisors (1973203245).

2500522515 is a wasteful number, since it uses less digits than its factorization.

2500522515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118148 (or 118142 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2500522515 is about 50005.2248770066. The cubic root of 2500522515 is about 1357.3033566388.

Adding to 2500522515 its reverse (5152250052), we get a palindrome (7652772567).

The spelling of 2500522515 in words is "two billion, five hundred million, five hundred twenty-two thousand, five hundred fifteen".