2512805649 has 8 divisors (see below), whose sum is σ = 3547490400. Its totient is φ = 1576662336.

The previous prime is 2512805621. The next prime is 2512805653. The reversal of 2512805649 is 9465082152.

2512805649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2512805649 - 2¹³ = 2512797457 is a prime.

It is a super-2 number, since 2×2512805649² = 12628384459292622402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2512805649.

It is not an unprimeable number, because it can be changed into a prime (2512805699) 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, 24635299 + ... + 24635400.

It is an arithmetic number, because the mean of its divisors is an integer number (443436300).

Almost surely, 2^2512805649 is an apocalyptic number.

It is an amenable number.

2512805649 is a deficient number, since it is larger than the sum of its proper divisors (1034684751).

2512805649 is a wasteful number, since it uses less digits than its factorization.

2512805649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49270719.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 2512805649 is about 50127.8929239999. The cubic root of 2512805649 is about 1359.5221881539.

The spelling of 2512805649 in words is "two billion, five hundred twelve million, eight hundred five thousand, six hundred forty-nine".