2512157617 has 8 divisors (see below), whose sum is σ = 2576448000. Its totient is φ = 2448011040.

The previous prime is 2512157603. The next prime is 2512157623. The reversal of 2512157617 is 7167512152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2512157617 is a prime.

It is a super-2 number, since 2×2512157617² = 12621871785302237378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512157717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117 + ... + 70882.

It is an arithmetic number, because the mean of its divisors is an integer number (322056000).

Almost surely, 2^2512157617 is an apocalyptic number.

It is an amenable number.

2512157617 is a deficient number, since it is larger than the sum of its proper divisors (64290383).

2512157617 is an equidigital number, since it uses as much as digits as its factorization.

2512157617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71903.

The product of its digits is 29400, while the sum is 37.

The square root of 2512157617 is about 50121.4287206580. The cubic root of 2512157617 is about 1359.4053082260.

Adding to 2512157617 its reverse (7167512152), we get a palindrome (9679669769).

The spelling of 2512157617 in words is "two billion, five hundred twelve million, one hundred fifty-seven thousand, six hundred seventeen".