2025064821 has 32 divisors (see below), whose sum is σ = 3078714240. Its totient is φ = 1173705984.

The previous prime is 2025064817. The next prime is 2025064823. The reversal of 2025064821 is 1284605202.

It is not a de Polignac number, because 2025064821 - 2² = 2025064817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025064823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120295 + ... + 136091.

It is an arithmetic number, because the mean of its divisors is an integer number (96209820).

Almost surely, 2^2025064821 is an apocalyptic number.

It is an amenable number.

2025064821 is a deficient number, since it is larger than the sum of its proper divisors (1053649419).

2025064821 is a wasteful number, since it uses less digits than its factorization.

2025064821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16005.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2025064821 is about 45000.7202275697. The cubic root of 2025064821 is about 1265.1624971046.

The spelling of 2025064821 in words is "two billion, twenty-five million, sixty-four thousand, eight hundred twenty-one".