2545221023 has 2 divisors, whose sum is σ = 2545221024. Its totient is φ = 2545221022.

The previous prime is 2545221017. The next prime is 2545221037. The reversal of 2545221023 is 3201225452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2545221023 - 2¹⁸ = 2544958879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545220983 and 2545221001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545221013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272610511 + 1272610512.

It is an arithmetic number, because the mean of its divisors is an integer number (1272610512).

Almost surely, 2^2545221023 is an apocalyptic number.

2545221023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545221023 is an equidigital number, since it uses as much as digits as its factorization.

2545221023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2545221023 is about 50450.1835774658. The cubic root of 2545221023 is about 1365.3432070031.

Adding to 2545221023 its reverse (3201225452), we get a palindrome (5746446475).

The spelling of 2545221023 in words is "two billion, five hundred forty-five million, two hundred twenty-one thousand, twenty-three".