2025525566 has 4 divisors (see below), whose sum is σ = 3038288352. Its totient is φ = 1012762782.

The previous prime is 2025525563. The next prime is 2025525581. The reversal of 2025525566 is 6655255202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6655255202 = 2 ⋅3327627601.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025525563) 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 as a sum of consecutive naturals, namely, 506381390 + ... + 506381393.

It is an arithmetic number, because the mean of its divisors is an integer number (759572088).

Almost surely, 2^2025525566 is an apocalyptic number.

2025525566 is a deficient number, since it is larger than the sum of its proper divisors (1012762786).

2025525566 is a wasteful number, since it uses less digits than its factorization.

2025525566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012762785.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 2025525566 is about 45005.8392433693. The cubic root of 2025525566 is about 1265.2584402213.

The spelling of 2025525566 in words is "two billion, twenty-five million, five hundred twenty-five thousand, five hundred sixty-six".