2515452641 has 4 divisors (see below), whose sum is σ = 2708949012. Its totient is φ = 2321956272.

The previous prime is 2515452637. The next prime is 2515452647. The reversal of 2515452641 is 1462545152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 992502016 + 1522950625 = 31504^2 + 39025^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515452641 - 2² = 2515452637 is a prime.

It is a super-2 number, since 2×2515452641² = 12655003978227749762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2515452647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96748166 + ... + 96748191.

It is an arithmetic number, because the mean of its divisors is an integer number (677237253).

Almost surely, 2^2515452641 is an apocalyptic number.

It is an amenable number.

2515452641 is a deficient number, since it is larger than the sum of its proper divisors (193496371).

2515452641 is a wasteful number, since it uses less digits than its factorization.

2515452641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193496370.

The product of its digits is 48000, while the sum is 35.

The square root of 2515452641 is about 50154.2883610165. The cubic root of 2515452641 is about 1359.9993946436. Note that the first 3 decimals are identical.

Adding to 2515452641 its reverse (1462545152), we get a palindrome (3977997793).

The spelling of 2515452641 in words is "two billion, five hundred fifteen million, four hundred fifty-two thousand, six hundred forty-one".