2525564497 has 4 divisors (see below), whose sum is σ = 2525783536. Its totient is φ = 2525345460.

The previous prime is 2525564479. The next prime is 2525564539. The reversal of 2525564497 is 7944655252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2525564497 - 2⁷ = 2525564369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2525564497.

It is not an unprimeable number, because it can be changed into a prime (2525564407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91203 + ... + 115624.

It is an arithmetic number, because the mean of its divisors is an integer number (631445884).

Almost surely, 2^2525564497 is an apocalyptic number.

It is an amenable number.

2525564497 is a deficient number, since it is larger than the sum of its proper divisors (219039).

2525564497 is a wasteful number, since it uses less digits than its factorization.

2525564497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219038.

The product of its digits is 3024000, while the sum is 49.

The square root of 2525564497 is about 50254.9947467911. The cubic root of 2525564497 is about 1361.8193098748.

The spelling of 2525564497 in words is "two billion, five hundred twenty-five million, five hundred sixty-four thousand, four hundred ninety-seven".