2045321025 has 48 divisors (see below), whose sum is σ = 3883203840. Its totient is φ = 939470400.

The previous prime is 2045321009. The next prime is 2045321027. The reversal of 2045321025 is 5201235402.

It is not a de Polignac number, because 2045321025 - 2⁴ = 2045321009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045320986 and 2045321004.

It is not an unprimeable number, because it can be changed into a prime (2045321027) 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 47 ways as a sum of consecutive naturals, for example, 49567 + ... + 80916.

It is an arithmetic number, because the mean of its divisors is an integer number (80900080).

Almost surely, 2^2045321025 is an apocalyptic number.

2045321025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2045321025 is a deficient number, since it is larger than the sum of its proper divisors (1837882815).

2045321025 is a wasteful number, since it uses less digits than its factorization.

2045321025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130526 (or 130521 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2045321025 is about 45225.2255384094. The cubic root of 2045321025 is about 1269.3668749924.

Adding to 2045321025 its reverse (5201235402), we get a palindrome (7246556427).

The spelling of 2045321025 in words is "two billion, forty-five million, three hundred twenty-one thousand, twenty-five".